docs(README): fix the image links (#6760)

Co-authored-by: ymh-masuda <160470322+ymh-masuda@users.noreply.github.com>

README.md

@@ -1,5 +1,6 @@
 
-<a href="https://github.com/sponsors/lvgl" target="_blank"><img align="left" src="https://lvgl.io/assets/images/sponsor.png" height="32px"></a>
+
+<a href="https://github.com/sponsors/lvgl" target="_blank"><img align="left" src="https://lvgl.io/github-assets/sponsor.png" height="32px"></a>
 
 <p align="right">
   <b>English</b> | <a href="./docs/README_zh.rst">中文</a> | <a href="./docs/README_pt_BR.rst">Português do Brasil</a> | <a href="./docs/README_jp.rst">日本語</a>
@@ -8,16 +9,17 @@
 <br>
 
 <p align="center">
-  <img src="https://lvgl.io/assets/images/logo_lvgl.png">
+  <img src="https://lvgl.io/github-assets/logo-colored.png" width=300px>
 </p>
 
   <h1 align="center">Light and Versatile Graphics Library</h1>
   <br>
 <div align="center">
-  <img src="https://github.com/kisvegabor/test/raw/master/smartwatch_demo.gif">
+  <img src="https://lvgl.io/github-assets/smartwatch-demo.gif">
   &nbsp;
-  <img border="1px" src="https://lvgl.io/assets/images/lvgl_widgets_demo.gif">
+  <img border="1px" src="https://lvgl.io/github-assets/widgets-demo.gif">
 </div>
+
 <br>
 <p align="center">
 <a href="https://lvgl.io" title="Homepage of LVGL">Website </a> |
@@ -102,7 +104,6 @@ LVGL is available as:
 - CMSIS-Pack
 - [RIOT OS package](https://doc.riot-os.org/group__pkg__lvgl.html#details)
 
-
 ## :robot: Examples
 
 See some examples of creating widgets, using layouts and applying styles. You will find C and MicroPython code, and links to try out or edit the examples in an online MicroPython editor.

docs/CHANGELOG.rst

@@ -3,150 +3,596 @@
 Changelog
 =========
 
-v9.0.0
+`v9.1.0 <https://github.com/lvgl/lvgl/compare/v9.0.0...v9.1.0>`__ 20 March 2024
-~~~~~~
+----------------------------------------------------------------------------------------------
 
-Migration guide
+New Features
-^^^^^^^^^^^^^^^
+~~~~~~~~~~~~
 
-As v9 is a major version it contains API breaking changes too. Most of the conceptual changes in v9 were internal, however the API was affected some widgets reword and refactoring as well.
+- **feat(indev) Add crown support to pointer input device**
+`5057 <https://github.com/lvgl/lvgl/pull/5057>`__
+- **feat(test): test bin image loaded to RAM or not**
+`5895 <https://github.com/lvgl/lvgl/pull/5895>`__
+- **feat(script): change trace_filter default trace log file to log_file.systrace**
+`5900 <https://github.com/lvgl/lvgl/pull/5900>`__
+- **feat(vg_lite): automatically select path type based on opa**
+`5896 <https://github.com/lvgl/lvgl/pull/5896>`__
+- **feat(freertos): support Espressif's FreeRTOS flavor**
+`5862 <https://github.com/lvgl/lvgl/pull/5862>`__
+- **feat(tests): add freetype font stress tests**
+`5828 <https://github.com/lvgl/lvgl/pull/5828>`__
+- **feat(vg_lite): add stroke path support**
+`5831 <https://github.com/lvgl/lvgl/pull/5831>`__
+- **feat(docs): add Chinese translation (jump link)**
+`5839 <https://github.com/lvgl/lvgl/pull/5839>`__
+- **feat(ci): update distro to ubuntu 22.02 to fix freetype build problem**
+`5834 <https://github.com/lvgl/lvgl/pull/5834>`__
+- **feat(image_cache): add resize function to image cache**
+`5829 <https://github.com/lvgl/lvgl/pull/5829>`__
+- **feat(nuttx): add cpu idle getter**
+`5814 <https://github.com/lvgl/lvgl/pull/5814>`__
+- **feat(test): add multiple color formats to stride adjust test**
+`5690 <https://github.com/lvgl/lvgl/pull/5690>`__
+- **feat(libjpeg_turbo): add JPEG image EXIF data parsing**
+`5263 <https://github.com/lvgl/lvgl/pull/5263>`__
+- **feat(freetype): change the tilt of freetype fonts in italics**
+`5812 <https://github.com/lvgl/lvgl/pull/5812>`__
+- **feat(vg_lite): add matrix assert**
+`5766 <https://github.com/lvgl/lvgl/pull/5766>`__
+- **feat(vg_lite): add grad cache size config and auto release cache**
+`5731 <https://github.com/lvgl/lvgl/pull/5731>`__
+- **feat(draw_buf): support indexed image in draw_buf_copy**
+`5686 <https://github.com/lvgl/lvgl/pull/5686>`__
+- **feat(nuttx): update display driver**
+`5752 <https://github.com/lvgl/lvgl/pull/5752>`__
+- **feat(fs): implement littlefs lfs.h driver support**
+`5562 <https://github.com/lvgl/lvgl/pull/5562>`__
+- **feat(test_keyboard): add keyboard test**
+`5739 <https://github.com/lvgl/lvgl/pull/5739>`__
+- **feat(x11): add LV_KEYs**
+`5704 <https://github.com/lvgl/lvgl/pull/5704>`__
+- **feat(display): add save screenshot to file support**
+`5481 <https://github.com/lvgl/lvgl/pull/5481>`__
+- **feat(decoder): do not even try cache if 'no_cache' is set**
+`5688 <https://github.com/lvgl/lvgl/pull/5688>`__
+- **feat(event): return event dsc for later to remove**
+`5630 <https://github.com/lvgl/lvgl/pull/5630>`__
+- **feat(keyboard) add Home and End keys mapping**
+`5675 <https://github.com/lvgl/lvgl/pull/5675>`__
+- **feat(draw_buf): distinguish between lv_image_dsc_t and lv_draw_buf_t**
+`5496 <https://github.com/lvgl/lvgl/pull/5496>`__
+- **feat(indev): remove the PRESSED state on scroll**
+`5660 <https://github.com/lvgl/lvgl/pull/5660>`__
+- **feat(sysmon): show max memory usage**
+`5661 <https://github.com/lvgl/lvgl/pull/5661>`__
+- **feat(image_decoder): add stride warning**
+`5471 <https://github.com/lvgl/lvgl/pull/5471>`__
+- **feat(image, layer): add bitmap mask feature**
+`5545 <https://github.com/lvgl/lvgl/pull/5545>`__
+- **feat(draw-sw): add simple Helium acceleration**
+`5596 <https://github.com/lvgl/lvgl/pull/5596>`__
+- **feat(cache): use unified cache entry free callback**
+`5612 <https://github.com/lvgl/lvgl/pull/5612>`__
+- **feat(draw_buf): use draw_buf as parameter of invalidate_cache API**
+`5602 <https://github.com/lvgl/lvgl/pull/5602>`__
+- **feat(script): add ARGB8565 format support**
+`5593 <https://github.com/lvgl/lvgl/pull/5593>`__
+- **feat(vg_lite): add ARGB8565 support**
+`5592 <https://github.com/lvgl/lvgl/pull/5592>`__
+- **feat(vg_lite): add gpu idle flush**
+`5571 <https://github.com/lvgl/lvgl/pull/5571>`__
+- **feat(vg_lite_tvg): add buffer address alignment config**
+`5576 <https://github.com/lvgl/lvgl/pull/5576>`__
+- **feat(vg_lite/vector): add compatible processing for non-scissor support**
+`5572 <https://github.com/lvgl/lvgl/pull/5572>`__
+- **feat(vg_lite): remove support for RGB565A8**
+`5574 <https://github.com/lvgl/lvgl/pull/5574>`__
+- **feat(vg_lite_label): upgrade path quality to HIGH**
+`5556 <https://github.com/lvgl/lvgl/pull/5556>`__
+- **feat(font_glyph_format): refactor draw and font format into `lv_font_glyph_format_t`**
+`5540 <https://github.com/lvgl/lvgl/pull/5540>`__
+- **feat(vg_lite): add index format decode support**
+`5476 <https://github.com/lvgl/lvgl/pull/5476>`__
+- **feat(vector): add API to append arc**
+`5510 <https://github.com/lvgl/lvgl/pull/5510>`__
+- **feat(nuttx_image_cache): add independent image cache heap support**
+`5528 <https://github.com/lvgl/lvgl/pull/5528>`__
+- **feat(cache): refactor cache framework and add new APIs**
+`5501 <https://github.com/lvgl/lvgl/pull/5501>`__
+- **feat(drivers): add libinput/xkb driver**
+`5486 <https://github.com/lvgl/lvgl/pull/5486>`__
+- **feat(draw_buf): misc update**
+`5498 <https://github.com/lvgl/lvgl/pull/5498>`__
+- **feat(draw): add convenience methods for safely getting correct draw descriptor**
+`5505 <https://github.com/lvgl/lvgl/pull/5505>`__
+- **feat(profiler): add multithreading support and testcase**
+`5490 <https://github.com/lvgl/lvgl/pull/5490>`__
+- **feat(doc): Update display-related documentation to new API**
+`5489 <https://github.com/lvgl/lvgl/pull/5489>`__
+- **feat(image_cache): add image header cache drop**
+`5472 <https://github.com/lvgl/lvgl/pull/5472>`__
+- **feat(fbdev): add docs and allow forcing refresh**
+`5444 <https://github.com/lvgl/lvgl/pull/5444>`__
+- **feat(script): add tool to view bin image**
+`5451 <https://github.com/lvgl/lvgl/pull/5451>`__
+- **feat(vg_lite): add profiler instrumentation**
+`5434 <https://github.com/lvgl/lvgl/pull/5434>`__
 
+- **feat(draw_letter): adapt `lv_font_glyph_format_t` for draw_letter process**
+`3c1a765 <https://github.com/lvgl/lvgl/commit/3c1a76506e8d948d5c8e029f3467139bdddf7e16>`__
+- **feat(color): add color format ARGB8565**
+`86016a8 <https://github.com/lvgl/lvgl/commit/86016a819a134b2d71777406cfacb3a25d7685cc>`__
 
-IMPORTANT
+Performance
----------
+~~~~~~~~~~~
 
-If you are updating a v8 project to v9, special care must be taken as some parts
+- **perf(draw): minor optimization on rgb565 color blending**
+`5603 <https://github.com/lvgl/lvgl/pull/5603>`__
+- **perf(draw): use the simpler layer clear method**
+`5470 <https://github.com/lvgl/lvgl/pull/5470>`__
+- **perf(vg_lite): add asynchronous rendering support**
+`5398 <https://github.com/lvgl/lvgl/pull/5398>`__
 
--  will not result in compiler error, but LVGL might not work due to related issues
+Fixes
--  will result in hard to understand compiler errors
+~~~~~
 
-So pay extra attention to these:
+- **fix(obj_tree): fix unintended click triggers on object deletion**
+`5907 <https://github.com/lvgl/lvgl/pull/5907>`__
+- **fix(monkey): add missing include**
+`5903 <https://github.com/lvgl/lvgl/pull/5903>`__
+- **fix(demo/vector_graphic): add missing buffer clear**
+`5898 <https://github.com/lvgl/lvgl/pull/5898>`__
+- **fix(image): fix the image decoder if LV_BIN_DECODER_RAM_LOAD == 0**
+`5892 <https://github.com/lvgl/lvgl/pull/5892>`__
+- **fix(indev): Fix scroll obj cannot be cleared when waiting until release**
+`5833 <https://github.com/lvgl/lvgl/pull/5833>`__
+- **fix(vglite): update NXP's VGLite implementation**
+`5887 <https://github.com/lvgl/lvgl/pull/5887>`__
+- **fix(imagebutton): clipped area of mid part**
+`5849 <https://github.com/lvgl/lvgl/pull/5849>`__
+- **fix(drm): default to XRGB8888 framebuffer**
+`5851 <https://github.com/lvgl/lvgl/pull/5851>`__
+- **fix(vg_lite): fix stroke path memory leak**
+`5883 <https://github.com/lvgl/lvgl/pull/5883>`__
+- **fix(ci): workaround ASAN error in CI with Ubuntu 22.04 image**
+`5867 <https://github.com/lvgl/lvgl/pull/5867>`__
+- **fix(conf): fix typo cause thorvg not enabled**
+`5837 <https://github.com/lvgl/lvgl/pull/5837>`__
+- **fix(indev): always save the last key**
+`5795 <https://github.com/lvgl/lvgl/pull/5795>`__
+- **fix(fsdrv/fatfs): fix does not detect the end of entries in fs_dir_read**
+`5826 <https://github.com/lvgl/lvgl/pull/5826>`__
+- **fix(layer): update the cached layer type on state change**
+`5801 <https://github.com/lvgl/lvgl/pull/5801>`__
+- **fix(file_explorer): fix quick access compiler error**
+`5783 <https://github.com/lvgl/lvgl/pull/5783>`__
+- **fix(msgbox): return the footer in lv_msgbox_get_footer**
+`5804 <https://github.com/lvgl/lvgl/pull/5804>`__
+- **fix(x11): fix assert on delete**
+`5799 <https://github.com/lvgl/lvgl/pull/5799>`__
+- **fix(demo_music): fix the previous button in the music demo is not clickable**
+`5808 <https://github.com/lvgl/lvgl/pull/5808>`__
+- **fix(draw): fix non antialiased rgb565a8 transformation**
+`5782 <https://github.com/lvgl/lvgl/pull/5782>`__
+- **fix(freetpye): fix the problem of incomplete font drawing when setting with italic**
+`5807 <https://github.com/lvgl/lvgl/pull/5807>`__
+- **fix(fsdrv): add missing lv_fs_littlefs_init function declaration**
+`5778 <https://github.com/lvgl/lvgl/pull/5778>`__
+- **fix(vg_lite):fix bug for wrong rendering in vertical or horizontal dir**
+`5789 <https://github.com/lvgl/lvgl/pull/5789>`__
+- **fix(env): added *.cpp glob in ESP configuration**
+`5761 <https://github.com/lvgl/lvgl/pull/5761>`__
+- **fix(draw): fix the invalidation of scaled areas**
+`5548 <https://github.com/lvgl/lvgl/pull/5548>`__
+- **fix(warning): variable set but unused.**
+`5757 <https://github.com/lvgl/lvgl/pull/5757>`__
+- **fix(draw): fix rgb565 with LV_BLEND_MODE_MULTIPLY**
+`5749 <https://github.com/lvgl/lvgl/pull/5749>`__
+- **fix(api_map_v8): add some missing functions**
+`5710 <https://github.com/lvgl/lvgl/pull/5710>`__
+- ** fix(refr): fix ARGB8888 buffer clearing in DIRECT mode (#5741)**
+`5758 <https://github.com/lvgl/lvgl/pull/5758>`__
+- **fix(draw_buf): init struct member in order**
+`5753 <https://github.com/lvgl/lvgl/pull/5753>`__
+- **fix(refr): fix clearing the partial buffers in case of ARGB8888 format**
+`5741 <https://github.com/lvgl/lvgl/pull/5741>`__
+- **fix(x11): fix typo**
+`5742 <https://github.com/lvgl/lvgl/pull/5742>`__
+- **fix(draw_vector): check the point length of path in lv_vector_path_get_bounding**
+`5734 <https://github.com/lvgl/lvgl/pull/5734>`__
+- **fix(vg_lite): fix draw layer drawing is incomplete**
+`5729 <https://github.com/lvgl/lvgl/pull/5729>`__
+- **fix(test_span): fix an issue where img has span_1.png, but it is not in the code**
+`5736 <https://github.com/lvgl/lvgl/pull/5736>`__
+- **fix(vg_lite): fix drawing command accumulation**
+`5730 <https://github.com/lvgl/lvgl/pull/5730>`__
+- **fix(vg_lite): fix vector rendering fill dsc matrix not taking effect**
+`5728 <https://github.com/lvgl/lvgl/pull/5728>`__
+- **fix(stdlib): fix issues when using LVGL TLSF memory pool to manage more than 4 GiB of memory**
+`5720 <https://github.com/lvgl/lvgl/pull/5720>`__
+- **fix(vg_lite): remove redundant MOVE_TO operations**
+`5713 <https://github.com/lvgl/lvgl/pull/5713>`__
+- **fix(nuttx): fix compile warning**
+`5701 <https://github.com/lvgl/lvgl/pull/5701>`__
+- **fix(draw_vector): remove redundant MOVE_TO operations**
+`5715 <https://github.com/lvgl/lvgl/pull/5715>`__
+- **fix(draw_buf): use height as loop condition instead of checking data pointers**
+`5687 <https://github.com/lvgl/lvgl/pull/5687>`__
+- **fix(vg_lite): fix the loss of display accuracy of rounded rectangles**
+`5714 <https://github.com/lvgl/lvgl/pull/5714>`__
+- **fix(test): check compiler flag should not contain '_'**
+`5706 <https://github.com/lvgl/lvgl/pull/5706>`__
+- **fix(imagebutton): fix the example**
+`5719 <https://github.com/lvgl/lvgl/pull/5719>`__
+- **fix(drm): eliminate use of non-existent lv_api_map.h and enable smoke tests**
+`5694 <https://github.com/lvgl/lvgl/pull/5694>`__
+- **fix(test): enable -Wpedantic**
+`5676 <https://github.com/lvgl/lvgl/pull/5676>`__
+- **fix(pxp): fix issues in pxp cache management callback**
+`5685 <https://github.com/lvgl/lvgl/pull/5685>`__
+- **fix(windows): improve graphic performance via using high resolution tick count and timer delay implementation**
+`5711 <https://github.com/lvgl/lvgl/pull/5711>`__
+- **fix(windows): improve the document**
+`5699 <https://github.com/lvgl/lvgl/pull/5699>`__
+- **fix(example): fix lv_example_obj_2**
+`5697 <https://github.com/lvgl/lvgl/pull/5697>`__
+- **fix(draw): fix compiler error when LV_DRAW_SW_COMPLEX is disabled**
+`5695 <https://github.com/lvgl/lvgl/pull/5695>`__
+- **fix(test): allow to run test locally on mac**
+`5672 <https://github.com/lvgl/lvgl/pull/5672>`__
+- **fix(sdl): fix buf memleak on lv_display_delete**
+`5692 <https://github.com/lvgl/lvgl/pull/5692>`__
+- **fix(decoder): decoded image should always have same w,h as original image**
+`5689 <https://github.com/lvgl/lvgl/pull/5689>`__
+- **fix(cache): fix warnings**
+`5671 <https://github.com/lvgl/lvgl/pull/5671>`__
+- **fix(dave2d): follow lvgl changes**
+`5659 <https://github.com/lvgl/lvgl/pull/5659>`__
+- **fix(vg_lite): fix typo in decoder_close**
+`5683 <https://github.com/lvgl/lvgl/pull/5683>`__
+- **fix(vg_lite): use float instead of int to avoid type conversion**
+`5682 <https://github.com/lvgl/lvgl/pull/5682>`__
+- **fix(formatting): fix code formatting**
+`5673 <https://github.com/lvgl/lvgl/pull/5673>`__
+- **fix(freetype): fix build break when disable LV_USE_FS_MEMFS**
+`5651 <https://github.com/lvgl/lvgl/pull/5651>`__
+- **fix(array): use memmove instead of memcopy**
+`5656 <https://github.com/lvgl/lvgl/pull/5656>`__
+- **fix(image): fix wrong log level statement**
+`5655 <https://github.com/lvgl/lvgl/pull/5655>`__
+- **fix(tests): fix test_img_emoji_F617.c error include path**
+`5652 <https://github.com/lvgl/lvgl/pull/5652>`__
+- **fix(FreeRTOS): Stacksize calculation**
+`5647 <https://github.com/lvgl/lvgl/pull/5647>`__
+- **fix(benchmark): fix FPS calculation**
+`5646 <https://github.com/lvgl/lvgl/pull/5646>`__
+- **fix(label): consider max-width**
+`5644 <https://github.com/lvgl/lvgl/pull/5644>`__
+- **fix(demo): fix memory leak in vector demo**
+`5643 <https://github.com/lvgl/lvgl/pull/5643>`__
+- **fix(calendar): fix crash when no default is set**
+`5621 <https://github.com/lvgl/lvgl/pull/5621>`__
+- **fix(freetype): fix using memfs to create a FT font**
+`5627 <https://github.com/lvgl/lvgl/pull/5627>`__
+- **fix(indev): fix variable name in preprocessor warning**
+`5637 <https://github.com/lvgl/lvgl/pull/5637>`__
+- **fix(rle): avoid buffer overflow when compressed data is not in pixel unit**
+`5619 <https://github.com/lvgl/lvgl/pull/5619>`__
+- **fix(LVGLImage): use lv_image_dsc_t instead of lv_img_dsc_t**
+`5629 <https://github.com/lvgl/lvgl/pull/5629>`__
+- **fix(vg_lite): fix linear image use after free**
+`5618 <https://github.com/lvgl/lvgl/pull/5618>`__
+- **fix(kconfig): skip lv_conf.h by default**
+`5617 <https://github.com/lvgl/lvgl/pull/5617>`__
+- **fix(image): add data_size filed to all c-array images**
+`5608 <https://github.com/lvgl/lvgl/pull/5608>`__
+- **fix(doc): wrong code for Displays transparency**
+`5607 <https://github.com/lvgl/lvgl/pull/5607>`__
+- **fix(refr): take stride into consideration in partial update mode**
+`5583 <https://github.com/lvgl/lvgl/pull/5583>`__
+- **fix(test): fix typo related to #5559**
+`5594 <https://github.com/lvgl/lvgl/pull/5594>`__
+- **fix(sysmon): fix build error when LV_USE_PERF_MONITOR_LOG_MODE is enabled**
+`5597 <https://github.com/lvgl/lvgl/pull/5597>`__
+- **fix(sdl): use the new draw buffer structure in the layers**
+`5578 <https://github.com/lvgl/lvgl/pull/5578>`__
+- **fix(benchmark): improve the benchmark**
+`5558 <https://github.com/lvgl/lvgl/pull/5558>`__
+- **fix(ffmpeg): add missing stride setting to ffmpeg image**
+`5580 <https://github.com/lvgl/lvgl/pull/5580>`__
+- **fix(sysmon): fix build break**
+`5585 <https://github.com/lvgl/lvgl/pull/5585>`__
+- **fix(tileview): on size change auto. update the pos. of the tiles**
+`5577 <https://github.com/lvgl/lvgl/pull/5577>`__
+- **fix(sdl): fix keyboard handling**
+`5575 <https://github.com/lvgl/lvgl/pull/5575>`__
+- **fix(lv_conf): minor typo fixes in lv_conf_template.h**
+`5570 <https://github.com/lvgl/lvgl/pull/5570>`__
+- **fix(vg_lite): fix arc img not move to arc center**
+`5554 <https://github.com/lvgl/lvgl/pull/5554>`__
+- **fix(vg_lite): add grad image buffer check**
+`5552 <https://github.com/lvgl/lvgl/pull/5552>`__
+- **fix(obj): fix cover change with semi transparent gradients**
+`5531 <https://github.com/lvgl/lvgl/pull/5531>`__
+- **fix(vg_lite): path matrix should use main vector matrix**
+`5538 <https://github.com/lvgl/lvgl/pull/5538>`__
+- **fix(vg_lite): fix LV_RADIUS_CIRCLE not round**
+`5543 <https://github.com/lvgl/lvgl/pull/5543>`__
+- **fix(vg_lite): add config to disable draw shadow**
+`5534 <https://github.com/lvgl/lvgl/pull/5534>`__
+- **fix(neon): update stride from px to bytes**
+`5526 <https://github.com/lvgl/lvgl/pull/5526>`__
+- **fix(script): Remove TRUECOLOR for LVGLImage.py**
+`5523 <https://github.com/lvgl/lvgl/pull/5523>`__
+- **fix(sysmon): support starting LVGL without having a display**
+`5518 <https://github.com/lvgl/lvgl/pull/5518>`__
+- **fix(chart): set the series id correctly**
+`5482 <https://github.com/lvgl/lvgl/pull/5482>`__
+- **fix(vg_lite): fix clip corner image display error**
+`5517 <https://github.com/lvgl/lvgl/pull/5517>`__
+- **fix(arduino): update example LVGL_Arduino.ino for v9**
+`5499 <https://github.com/lvgl/lvgl/pull/5499>`__
+- **fix(fb): set DPI to correctly**
+`5508 <https://github.com/lvgl/lvgl/pull/5508>`__
+- **fix(layer): Update calculation for overlay used memory**
+`5504 <https://github.com/lvgl/lvgl/pull/5504>`__
+- **fix(bin_decoder): fix potential free garbage address**
+`5509 <https://github.com/lvgl/lvgl/pull/5509>`__
+- **fix(decoder): treat ALLOCATED c-array image as draw buffer**
+`5483 <https://github.com/lvgl/lvgl/pull/5483>`__
+- **fix(vg_lite_tvg): fix use after free when change target canvas**
+`5497 <https://github.com/lvgl/lvgl/pull/5497>`__
+- **fix(keyboard): in the example set Arabic font if enabled**
+`5457 <https://github.com/lvgl/lvgl/pull/5457>`__
+- **fix(codespaces): fix the issue where lv_conf.h in codespaces is not enable**
+`5484 <https://github.com/lvgl/lvgl/pull/5484>`__
+- **fix(textarea): fix accepted chars issue on big endian systems**
+`5479 <https://github.com/lvgl/lvgl/pull/5479>`__
+- **fix(draw_line): fix the issue where dash_dap equals 1 and cannot display properly when the line is a horizontal line**
+`5473 <https://github.com/lvgl/lvgl/pull/5473>`__
+- **fix: removed LV_ATTRIBUTE_FAST_MEM function attribute from prototypes**
+`5467 <https://github.com/lvgl/lvgl/pull/5467>`__
+- **fix(arm2d): apply a temporary patch to arm-2d acceleration**
+`5466 <https://github.com/lvgl/lvgl/pull/5466>`__
+- **fix(snapshot): update the layout of the component before the screenshot**
+`5475 <https://github.com/lvgl/lvgl/pull/5475>`__
+- **fix(vg_lite): add missing 24bit color support check**
+`5469 <https://github.com/lvgl/lvgl/pull/5469>`__
+- **fix(display): set last_activity_time to the current time in lv_display**
+`5463 <https://github.com/lvgl/lvgl/pull/5463>`__
+- **fix(observer): fixed lv_subject_remove_all_obj**
+`5464 <https://github.com/lvgl/lvgl/pull/5464>`__
+- **fix(image_decoder): fix decoder not close**
+`5437 <https://github.com/lvgl/lvgl/pull/5437>`__
+- **fix(nuttx): fix build break**
+`5440 <https://github.com/lvgl/lvgl/pull/5440>`__
+- **fix: fix warnings with -flto on GCC 11**
+`5433 <https://github.com/lvgl/lvgl/pull/5433>`__
+- **fix(assert): add new macro to format assert message**
+`5453 <https://github.com/lvgl/lvgl/pull/5453>`__
+- **fix(decoder): if draw unit supports indexed image, don't add to cache**
+`5438 <https://github.com/lvgl/lvgl/pull/5438>`__
+- **fix(bar): mask the background to fix it on value adjustment**
+`5426 <https://github.com/lvgl/lvgl/pull/5426>`__
+- **fix(lvgl.mk): fix vg_lite_tvg.cpp not compiling**
+`5435 <https://github.com/lvgl/lvgl/pull/5435>`__
+- **fix(ci): use the dev branch of PlatformIO**
+`5432 <https://github.com/lvgl/lvgl/pull/5432>`__
+- **fix(vector) : add path bounding and matrix transform functions. **
+`5389 <https://github.com/lvgl/lvgl/pull/5389>`__
 
-- :cpp:func:`lv_display_set_buffers(display, buf1, buf2, buf_size_byte, mode)` is more or less the equivalent of ``lv_disp_draw_buf_init(&draw_buf_dsc, buf1, buf2, buf_size_px)`` from v8, however in **v9 the buffer size is set in bytes**.
+- **fix(warning): fix shadown variable warning**
-- In v9 ``lv_color_t`` is always RGB888 regardless of ``LV_COLOR_DEPTH``.
+`47750f1 <https://github.com/lvgl/lvgl/commit/47750f1b866e5ea0617035fd208c727878bebc44>`__
-- ``lv_conf.h`` has been changed a lot, so don't forget to update it from ``lv_conf_template.h``
+- **fix(thorvg): link lvgl_thorvgl with lvgl**
-- Be sure ``<stdint.h>`` is **not** included in ``lv_conf.h``. In v9 we have some assembly parts for even better performance and a random include there would mess up the assembly part.
+`9b09182 <https://github.com/lvgl/lvgl/commit/9b09182fc76032ef0bc8a2d930fa1cf4fd081431>`__
-- The online image converter in not updated yet. Until that use `LVGLImage.py <https://github.com/lvgl/lvgl/blob/master/scripts/LVGLImage.py>`__ .
+- **fix(warning): error: no newline at end of file**
-- Run time dithering is rendering due its complexity and lack of GPU support. Smaller dithered and tiled images can be used as background images as a replacement.
+`9a6a194 <https://github.com/lvgl/lvgl/commit/9a6a194680db9ea12f59e94eab6e812cb28d504f>`__
-- STM32's DMA2D (Chrom-ART) support is removed for now. It will be added again when an official partnership starts with ST too.
+- **fix(color): treat RGB565A8 bpp same as RGB565**
-- SJPG was removed as the original TJPGD support decoding tile-by-tile. (typically a tile is 8x8 pixels)
+`52426ec <https://github.com/lvgl/lvgl/commit/52426ec1919274e282889129f00e00a9a2a9ce60>`__
-- ``LV_COLOR_DEPTH 8`` is not supported yet. In v8 it meant RGB332, in v9 it will be used for L8.
+- **fix(warning): error: a function declaration without a prototype is deprecated in all versions of C**
+`c81f654 <https://github.com/lvgl/lvgl/commit/c81f654026501ba37d8df2d8ec02c58bd14eb1c3>`__
 
-Main new features
+Examples
------------------
+~~~~~~~~
 
-- Run time display color format adjustment with RGB888 support
+Docs
-- Built-in support ``pthread``, ``FreeRTOS`` and other (RT)OSes which are used during rendering
+~~~~
-- Built-in support LVGL's, C library, and other ``stdlib``s
-- Better parallel rendering architecture. See the details :ref:`here <porting_draw>`
-- Built in display and touch driver: SDL, Linux Frame buffer,  NuttX LCD and touch drivers, ST7789 and ILI9341 driver are available and more will come soon
-- :ref:`observer` allows to bind data to UI elements and create a uniform and easy to maintain API
-- GitHub CodeSpace integration makes possible to run LVGL in an Online VSCode editor with 3 click. See more `here <https://blog.lvgl.io/2023-04-13/monthly-newsletter>`__
-- Add vector graphics support via ThorVG. It can be used to draw vector graphics to a `Canvas <https://github.com/lvgl/lvgl/blob/master/examples/widgets/canvas/lv_example_canvas_8.c>`__
-- :ref:`lv_image` supports aligning, stretching or tiling the image source if the widget is larger or smaller.
 
-General API changes
+- **docs: update README**
--------------------
+`5841 <https://github.com/lvgl/lvgl/pull/5841>`__
+- **docs: make it easy to add more other translations**
+`5874 <https://github.com/lvgl/lvgl/pull/5874>`__
+- **docs: ignore the READMEs when building the docs**
+`5840 <https://github.com/lvgl/lvgl/pull/5840>`__
+- **docs(st7789): updated the docs + added code example and step-by-step guide for STM32**
+`5511 <https://github.com/lvgl/lvgl/pull/5511>`__
+- **docs(arduino): update tick setup**
+`5832 <https://github.com/lvgl/lvgl/pull/5832>`__
+- **docs(display): use lv_display_delete_refr_timer to delete display timer**
+`5835 <https://github.com/lvgl/lvgl/pull/5835>`__
+- **docs(lv_conf): show how to include something in lv_conf.h**
+`5740 <https://github.com/lvgl/lvgl/pull/5740>`__
+- **docs(tick): simplify and promote lv_tick_set_cb**
+`5781 <https://github.com/lvgl/lvgl/pull/5781>`__
+- **docs(style): output the style properties to style-props.rst**
+`5802 <https://github.com/lvgl/lvgl/pull/5802>`__
+- **docs(changelog): mention that LV_COLOR_DEPTH 8 is not supported yet**
+`5796 <https://github.com/lvgl/lvgl/pull/5796>`__
+- **docs(image): update align to inner_align**
+`5721 <https://github.com/lvgl/lvgl/pull/5721>`__
+- **docs(README_Zh): remove mentions of SquareLine Studio**
+`5640 <https://github.com/lvgl/lvgl/pull/5640>`__
+- **docs(profiler): fix my_get_cpu_cb implementation**
+`5641 <https://github.com/lvgl/lvgl/pull/5641>`__
+- **docs(demos): remove inconsistent READMEs**
+`5626 <https://github.com/lvgl/lvgl/pull/5626>`__
+- **docs(README): remove mentions of SquareLine Studio**
+`5638 <https://github.com/lvgl/lvgl/pull/5638>`__
+- **docs(changelog): mention more features removed in v9**
+`5632 <https://github.com/lvgl/lvgl/pull/5632>`__
+- **docs(micropython): update MicroPython examples in documentation**
+`5622 <https://github.com/lvgl/lvgl/pull/5622>`__
+- **docs(contributing): fix links**
+`5615 <https://github.com/lvgl/lvgl/pull/5615>`__
+- **docs(porting): add missing colon in porting docs**
+`5613 <https://github.com/lvgl/lvgl/pull/5613>`__
+- **docs(contributing): update the feature development workflow**
+`5601 <https://github.com/lvgl/lvgl/pull/5601>`__
+- **docs(tabview): fix tabview doc**
+`5588 <https://github.com/lvgl/lvgl/pull/5588>`__
+- **docs(indev): Document the relation between LV_INDEV_MODE_EVENT and data-&gt;continue_reading**
+`5586 <https://github.com/lvgl/lvgl/pull/5586>`__
+- **docs(pc-simulator): Document how to set up SDL manually, without IDE**
+`5563 <https://github.com/lvgl/lvgl/pull/5563>`__
+- **docs(disp): document lv_refr_now**
+`5480 <https://github.com/lvgl/lvgl/pull/5480>`__
+- **docs(disp): Fix pointer cast in flush_cb example**
+`5439 <https://github.com/lvgl/lvgl/pull/5439>`__
+- **docs(font): about "base dir"**
+`5429 <https://github.com/lvgl/lvgl/pull/5429>`__
 
+CI and tests
+~~~~~~~~~~~~
 
-Although `lv_api_map.h <https://github.com/lvgl/lvgl/blob/master/src/lv_api_map.h>`__ address most of the refactoring we encourage you to use the latest API directly.
+- **test(conf): update conf and remove deprecated configs**
-
+`5881 <https://github.com/lvgl/lvgl/pull/5881>`__
--  ``lv_disp_...`` is renamed to ``lv_display_...``
+- **tests(freetype): refactor code structure**
--  ``btn_...`` is renamed to ``button_...``
+`5871 <https://github.com/lvgl/lvgl/pull/5871>`__
--  ``btnmatrix_...`` is renamed to ``buttonmatrix_...``
+- **ci(micropython): catch event failure in the test**
--  ``img_...`` is renamed to ``image_...``
+`5787 <https://github.com/lvgl/lvgl/pull/5787>`__
--  ``zoom`` is renamed to ``scale``
+- **ci(ref_imgs): automatically generate the missing reference image folders**
--  ``angle`` is renamed to ``rotation``
+`5696 <https://github.com/lvgl/lvgl/pull/5696>`__
--  ``scr`` is renamed to ``screen``
+- **ci(assets): add LV_BUILD_TEST guard**
--  ``act`` is renamed to ``active``
+`5616 <https://github.com/lvgl/lvgl/pull/5616>`__
--  ``del`` is renamed to ``delete``
+- **ci(codecov): disable CodeCov**
--  ``col`` is renamed to ``column``
+`5623 <https://github.com/lvgl/lvgl/pull/5623>`__
--  ``lv_obj_clear_flag`` is renamed to ``lv_obj_remove_flag``
+- **test(asset): add guard to test_img_emoji_F617**
--  ``lv_obj_clear_state`` is renamed to ``lv_obj_remove_state``
+`5559 <https://github.com/lvgl/lvgl/pull/5559>`__
--  ``lv_coord_t`` was removed and replaced by ``int32_t``
+- **ci(micropython): use the master branch**
-
+`5460 <https://github.com/lvgl/lvgl/pull/5460>`__
-New color format management
+- **test(snapshot): add testcase for #5475**
----------------------------
+`5478 <https://github.com/lvgl/lvgl/pull/5478>`__
-
--  ``LV_IMG_CF_...`` was replaced by ``LV_COLOR_FORMAT_...``
--  ``LV_COLOR_DEPTH 24`` is supported for RGB888 rendering
--  ``lv_color_t`` always means RGB888
-
-Display API
------------
-
--  ``lv_disp_drv_t`` and ``lv_disp_draw_buf_t`` was removed
--  To create a display and set it up:
-
-.. code:: c
-
-   lv_display_t * disp = lv_display_create(hor_res, ver_res)
-   lv_display_set_flush_cb(disp, flush_cb);
-   lv_display_set_buffers(disp, buf1, buf2, buf_size_in_bytes, mode);
-
--  Note that now **buf size is in bytes and not pixels**
--  ``mode`` can be:
-
-   -  ``LV_DISPLAY_RENDER_MODE_PARTIAL`` This way the buffers can be
-      smaller then the display to save RAM. At least 1/10 screen sized
-      buffer(s) are recommended.
-   -  ``LV_DISPLAY_RENDER_MODE_DIRECT`` The buffer(s) has to be screen
-      sized and LVGL will render into the correct location of the
-      buffer. This way the buffer always contain the whole image. With 2
-      buffers the buffers’ content are kept in sync automatically. (Old
-      v7 behavior)
-   -  ``LV_DISPLAY_RENDER_MODE_FULL`` Just always redraw the whole
-      screen. With 2 buffers is a standard double buffering.
-
--  Similarly to the widgets, now you can attach events to the display
-   too, using ``lv_display_add_event()``
--  ``monitor_cb`` is removed and ``LV_EVENT_RENDER_READY`` event is
-   fired instead
--  Instead of having display background color and image,
-   ``lv_layer_bottom()`` is added where any color can be set or any
-   widget can be created.
--  The target color format can be adjusted in the display in runtime by calling
-   ``lv_display_set_color_format(disp, LV_COLOR_FORMAT_...)``
--  ``LV_COLOR_16_SWAP`` is removed and ``lv_draw_sw_rgb565_swap()`` can be called manually
-   in the ``flush_cb`` if needed to swap the in-place.
--  ``disp_drv.scr_transp`` was removed and
-   ``lv_display_set_color_format(disp, LV_COLOR_FORMAT_NATIVE_ALPHA)``
-   can be used instead
--  ``set_px_cb`` is removed. You can can convert the rendered image in the ``flush_cb``.
--  For more details check out the docs
-   `here /porting/display>`__ and
-   `here /overview/display>`__.
-
-Indev API
----------
-
--  Similarly to the display ``lv_indev_drv_t`` was removed and an input
-   device can be created like this:
--  Similarly to the widgets, now you can attach events to the indevs
-   too, using ``lv_indev_add_event()``
--  The ``feedback_cb`` was removed, instead ``LV_EVENT_PRESSED/CLICKED/etc``
-   events are sent to the input device
-
-.. code:: c
-
-   lv_indev_t * indev = lv_indev_create();
-   lv_indev_set_type(indev, LV_INDEV_TYPE_...);
-   lv_indev_set_read_cb(indev, read_cb);
 
 Others
 ~~~~~~
 
--  ``lv_msg`` is removed and replaced by
+- **chore(cmsis-pack): prepare for v9.1.0**
-   `lv_observer <https://docs.lvgl.io/master/others/observer.html>`__
+`5917 <https://github.com/lvgl/lvgl/pull/5917>`__
--  ``lv_chart`` ticks support was removed,
+- **chore: fix header files include recursion**
-   `lv_scale <https://docs.lvgl.io/master/widgets/scale.html>`__ can be
+`5844 <https://github.com/lvgl/lvgl/pull/5844>`__
-   used instead
+- **chore(group): avoid null pointer access**
-- ``lv_msgbox`` is update to be more flexible. It uses normal button instead of button matrix
+`5863 <https://github.com/lvgl/lvgl/pull/5863>`__
-- ``lv_tabview`` was updated to user real button instead of a button matrix
+- **refactor(conf): rename LV_DRAW_SW_LAYER_SIMPLE_BUF_SIZE to LV_DRAW_LAYER_SIMPLE_BUF_SIZE**
+`5798 <https://github.com/lvgl/lvgl/pull/5798>`__
+- **chore(freetype): remove unused codes**
+`5885 <https://github.com/lvgl/lvgl/pull/5885>`__
+- **chore: fix compile time warnings**
+`5872 <https://github.com/lvgl/lvgl/pull/5872>`__
+- **adds `extern "C"` to the header files that were missing it.**
+`5857 <https://github.com/lvgl/lvgl/pull/5857>`__
+- **chore(stdlib): remove duplicate function declaration**
+`5845 <https://github.com/lvgl/lvgl/pull/5845>`__
+- **chore(benchmark): add warning for probably low memory**
+`5797 <https://github.com/lvgl/lvgl/pull/5797>`__
+- **chore(group): add assertion to avoid null pointer access**
+`5769 <https://github.com/lvgl/lvgl/pull/5769>`__
+- **refact(Kconfig): update as per lv_conf_template.h**
+`5780 <https://github.com/lvgl/lvgl/pull/5780>`__
+- **Fix the compilation error problem of lvgl9.x on rtthread**
+`5794 <https://github.com/lvgl/lvgl/pull/5794>`__
+- **refact(vg_lite): abstract common pending release logic**
+`5756 <https://github.com/lvgl/lvgl/pull/5756>`__
+- **doc(stm32): fix typo**
+`5772 <https://github.com/lvgl/lvgl/pull/5772>`__
+- **doc(cache): add doc strings for cache APIs**
+`5718 <https://github.com/lvgl/lvgl/pull/5718>`__
+- **chore(docs): fix typo**
+`5738 <https://github.com/lvgl/lvgl/pull/5738>`__
+- **chore(font): remove unused defines**
+`5716 <https://github.com/lvgl/lvgl/pull/5716>`__
+- **chore: add stride information in the image resource file**
+`5653 <https://github.com/lvgl/lvgl/pull/5653>`__
+- **chore(draw_buf): remove unnecessary info logs**
+`5634 <https://github.com/lvgl/lvgl/pull/5634>`__
+- **chore(cmsis-pack): catchup update**
+`5611 <https://github.com/lvgl/lvgl/pull/5611>`__
+- **More chore work in indev files**
+`5604 <https://github.com/lvgl/lvgl/pull/5604>`__
+- **Stride adjust in place**
+`5423 <https://github.com/lvgl/lvgl/pull/5423>`__
+- **chore(conf): use EXTERNAL and INTERNAL macro to config libs**
+`5046 <https://github.com/lvgl/lvgl/pull/5046>`__
+- **chore(vg_lite): use pointer to access matrix element**
+`5591 <https://github.com/lvgl/lvgl/pull/5591>`__
+- **refactor(image): rename align to inner_align**
+`5560 <https://github.com/lvgl/lvgl/pull/5560>`__
+- **chore(deps): bump codecov/codecov-action from 3 to 4**
+`5567 <https://github.com/lvgl/lvgl/pull/5567>`__
+- **chore(deps): bump carlosperate/arm-none-eabi-gcc-action from 1.8.0 to 1.8.1**
+`5565 <https://github.com/lvgl/lvgl/pull/5565>`__
+- **chore(deps): bump mymindstorm/setup-emsdk from 13 to 14**
+`5566 <https://github.com/lvgl/lvgl/pull/5566>`__
+- **chore(deps): bump actions/cache from 3 to 4**
+`5568 <https://github.com/lvgl/lvgl/pull/5568>`__
+- **chore(deps): bump uraimo/run-on-arch-action from 2.6.0 to 2.7.1**
+`5569 <https://github.com/lvgl/lvgl/pull/5569>`__
+- **optionally install demos and libs as well**
+`5387 <https://github.com/lvgl/lvgl/pull/5387>`__
+- **chore(arc): fix typo**
+`5553 <https://github.com/lvgl/lvgl/pull/5553>`__
+- **Revert "feat(font_glyph_format): refactor draw and font format into `lv_font_glyph_format_t`"**
+`5550 <https://github.com/lvgl/lvgl/pull/5550>`__
+- **chore(thorvg): fix warning**
+`5535 <https://github.com/lvgl/lvgl/pull/5535>`__
+- **refactor(snapshot): use draw buffer interface**
+`5487 <https://github.com/lvgl/lvgl/pull/5487>`__
+- **chore(vg_lite): fix typo**
+`5525 <https://github.com/lvgl/lvgl/pull/5525>`__
+- **demo(music): add png assets**
+`5520 <https://github.com/lvgl/lvgl/pull/5520>`__
+- **chore(indev): Cleanup before working in double and triple click support**
+`5512 <https://github.com/lvgl/lvgl/pull/5512>`__
+- **chore(demos): Remove unused definitions**
+`5506 <https://github.com/lvgl/lvgl/pull/5506>`__
+- **chore(obj_draw): remove duplicate invalidate**
+`5503 <https://github.com/lvgl/lvgl/pull/5503>`__
+- **chore(widgets): add parentheses to MY_CLASS definition**
+`5485 <https://github.com/lvgl/lvgl/pull/5485>`__
+- **chore(draw-sw-transform): remove duplicated code**
+`5488 <https://github.com/lvgl/lvgl/pull/5488>`__
+- **chore(README): Fixed #5491 Typo**
+`5492 <https://github.com/lvgl/lvgl/pull/5492>`__
+- **chore(vg_lite): remove 64-bytes alignment requirement**
+`5477 <https://github.com/lvgl/lvgl/pull/5477>`__
+- **chore(refr): fix typo**
+`5474 <https://github.com/lvgl/lvgl/pull/5474>`__
+- **chore(array): use array_front and use it like an array**
+`5448 <https://github.com/lvgl/lvgl/pull/5448>`__
+- **chore(cache): only cache header info for file type of image**
+`5455 <https://github.com/lvgl/lvgl/pull/5455>`__
+- **refactor(indev_scroll): refactor code**
+`5456 <https://github.com/lvgl/lvgl/pull/5456>`__
+- **chore(draw_buf): add header magic to draw buff**
+`5449 <https://github.com/lvgl/lvgl/pull/5449>`__
+- **chore(Kconfig): add missing profiler trace buffer size config**
+`5436 <https://github.com/lvgl/lvgl/pull/5436>`__
+- **chore(libpng): fix warning**
+`5431 <https://github.com/lvgl/lvgl/pull/5431>`__
+
+Others
+~~~~~~
 
 
-v8.3
+- **refactor(freetype): refactor freetype params**
-~~~~
+`0c84cc0 <https://github.com/lvgl/lvgl/commit/0c84cc0b3b9b1ea37bd6aa5300e91eee0f2feb98>`__
+- **refactor(freetype): refactor glyph_index acquire method**
+`0b3016c <https://github.com/lvgl/lvgl/commit/0b3016c0e5b5d57141220c030c0aadd9d9c3387e>`__
+- **chore(README): Fixed #5491 Typo (#5492)**
+`9c025d3 <https://github.com/lvgl/lvgl/commit/9c025d357f358c281db441a96a27ce2a01434a8d>`__
 
-For Other v8.3.x releases visit the `Changelog in the release/v8.3 branch <https://github.com/lvgl/lvgl/blob/release/v8.3/docs/CHANGELOG.md>`__ .
+
+v9.0
+----
+
+For Other v9.0.x releases visit the `Changelog in the release/v9.0 branch <https://github.com/lvgl/lvgl/blob/release/v9.0/docs/CHANGELOG.rst>`__ .
 

src/font/lv_font.h

@@ -115,7 +115,7 @@ struct _lv_font_t {
 
     /*Pointer to the font in a font pack (must have the same line height)*/
     int32_t line_height;         /**< The real line height where any text fits*/
-    int32_t base_line;           /**< Base line measured from the top of the line_height*/
+    int32_t base_line;           /**< Base line measured from the bottom of the line_height*/
     uint8_t subpx   : 2;            /**< An element of `lv_font_subpx_t`*/
     uint8_t kerning : 1;            /**< An element of `lv_font_kerning_t`*/
 

src/widgets/roller/lv_roller.c

@@ -320,11 +320,10 @@ static void lv_roller_event(const lv_obj_class_t * class_p, lv_event_t * e)
         lv_indev_t * indev = lv_indev_active();
         lv_point_t p;
         lv_indev_get_vect(indev, &p);
-
         transform_vect_recursive(obj, &p);
         if(p.y) {
             lv_obj_t * label = get_label(obj);
-            lv_obj_set_y(label, lv_obj_get_y(label) + p.y);
+            lv_obj_set_y(label, lv_obj_get_y_aligned(label) + p.y);
             roller->moved = 1;
         }
     }
@@ -462,26 +461,31 @@ static void draw_main(lv_event_t * e)
             lv_obj_t * label = get_label(obj);
 
             /*Get the size of the "selected text"*/
-            lv_point_t res_p;
+            lv_point_t label_sel_size;
-            lv_text_get_size(&res_p, lv_label_get_text(label), label_dsc.font, label_dsc.letter_space, label_dsc.line_space,
+            lv_text_get_size(&label_sel_size, lv_label_get_text(label), label_dsc.font, label_dsc.letter_space,
-                             lv_obj_get_width(obj), LV_TEXT_FLAG_EXPAND);
+                             label_dsc.line_space, lv_obj_get_width(obj), LV_TEXT_FLAG_EXPAND);
 
             /*Move the selected label proportionally with the background label*/
             int32_t roller_h = lv_obj_get_height(obj);
-            int32_t label_y_prop = label->coords.y1 - (roller_h / 2 +
-                                                       obj->coords.y1); /*label offset from the middle line of the roller*/
-            label_y_prop = (label_y_prop * 16384) / lv_obj_get_height(
-                               label); /*Proportional position from the middle line (upscaled by << 14)*/
-
-            /*Apply a correction with different line heights*/
             const lv_font_t * normal_label_font = lv_obj_get_style_text_font(obj, LV_PART_MAIN);
-            int32_t corr = (label_dsc.font->line_height - normal_label_font->line_height) / 2;
+            /*label offset from the middle line of the roller*/
+            int32_t label_y_prop = (label->coords.y1 + normal_label_font->line_height / 2) - (roller_h / 2 + obj->coords.y1);
+
+            /*Proportional position from the middle line.
+             *Will be 0 for the first option, and 1 for the last option (upscaled by << 14)*/
+            int32_t remain_h = lv_obj_get_height(label) - normal_label_font->line_height;
+            if(remain_h > 0) {
+                label_y_prop = (label_y_prop << 14) / remain_h;
+            }
+
+            /*We don't want the selected label start and end exactly where the normal label is as
+             *a larger font won't centered on selected area.*/
+            int32_t corr = label_dsc.font->line_height;
 
             /*Apply the proportional position to the selected text*/
-            res_p.y -= corr;
             int32_t label_sel_y = roller_h / 2 + obj->coords.y1;
-            label_sel_y += (label_y_prop * res_p.y) >> 14;
+            label_sel_y += ((label_sel_size.y - corr) * label_y_prop) >> 14;
-            label_sel_y -= corr;
+            label_sel_y -= corr / 2;
 
             int32_t bwidth = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
             int32_t pleft = lv_obj_get_style_pad_left(obj, LV_PART_MAIN);
@@ -492,7 +496,7 @@ static void draw_main(lv_event_t * e)
             label_sel_area.x1 = obj->coords.x1 + pleft + bwidth;
             label_sel_area.y1 = label_sel_y;
             label_sel_area.x2 = obj->coords.x2 - pright - bwidth;
-            label_sel_area.y2 = label_sel_area.y1 + res_p.y;
+            label_sel_area.y2 = label_sel_area.y1 + label_sel_size.y;
 
             label_dsc.flag |= LV_TEXT_FLAG_EXPAND;
             const lv_area_t clip_area_ori = layer->_clip_area;
@@ -513,7 +517,6 @@ static void draw_label(lv_event_t * e)
     lv_draw_label_dsc_t label_draw_dsc;
     lv_draw_label_dsc_init(&label_draw_dsc);
     lv_obj_init_draw_label_dsc(roller, LV_PART_MAIN, &label_draw_dsc);
-
     lv_layer_t * layer = lv_event_get_layer(e);
 
     /*If the roller has shadow or outline it has some ext. draw size

tests/src/test_cases/widgets/test_roller.c

@@ -245,4 +245,87 @@ void test_roller_with_overlay_and_bubble_events_enabled(void)
 //    TEST_ASSERT_NOT_EQUAL(0, lv_roller_get_selected(roller_mouse));
 //}
 
+void test_roller_appearance(void)
+{
+    /* use a number, a symbol, a high letter, a low letter */
+    const char * opts =
+        "0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg\n0@Tg";
+
+    lv_obj_add_flag(roller_mouse, LV_OBJ_FLAG_HIDDEN);
+
+    lv_obj_t * rollers[10] = {roller, roller_infinite};
+    uint32_t i = 2;
+
+    /* a normal and infinite roller with the same size font for the main and selected parts */
+    lv_obj_set_pos(roller, 20, 20);
+    lv_roller_set_options(roller, opts, LV_PART_MAIN);
+    lv_obj_set_pos(roller_infinite, 20, 200);
+    lv_roller_set_options(roller_infinite, opts, LV_ROLLER_MODE_INFINITE);
+
+    /* a normal and infinite roller with slightly different size fonts for the main and selected parts */
+    lv_obj_t * r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 130, 20);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_NORMAL);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_16, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_24, LV_PART_SELECTED);
+    rollers[i++] = r;
+    r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 130, 200);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_INFINITE);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_16, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_24, LV_PART_SELECTED);
+    rollers[i++] = r;
+
+    /* same as previous pair but the fonts are swapped for the main and selected parts */
+    r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 270, 20);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_NORMAL);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_24, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_16, LV_PART_SELECTED);
+    rollers[i++] = r;
+    r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 270, 200);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_INFINITE);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_24, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_16, LV_PART_SELECTED);
+    rollers[i++] = r;
+
+    /* a normal and infinite roller with extremely different size fonts for the main and selected parts */
+    r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 410, 20);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_NORMAL);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_8, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_36, LV_PART_SELECTED);
+    rollers[i++] = r;
+    r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 410, 200);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_INFINITE);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_8, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_36, LV_PART_SELECTED);
+    rollers[i++] = r;
+
+    /* same as previous pair but the fonts are swapped for the main and selected parts */
+    r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 580, 20);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_NORMAL);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_36, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_8, LV_PART_SELECTED);
+    rollers[i++] = r;
+    r = lv_roller_create(active_screen);
+    lv_obj_set_pos(r, 580, 200);
+    lv_roller_set_options(r, opts, LV_ROLLER_MODE_INFINITE);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_36, LV_PART_MAIN);
+    lv_obj_set_style_text_font(r, &lv_font_montserrat_8, LV_PART_SELECTED);
+    rollers[i++] = r;
+
+    TEST_ASSERT_EQUAL_SCREENSHOT("widgets/roller_2.png");
+
+    /* test that the selected label stays in sync with the main label for scrolling */
+    for(i = 0; i < 10; i++) {
+        lv_roller_set_selected(rollers[i], lv_roller_get_option_count(rollers[i]) - 1, LV_ANIM_OFF);
+    }
+
+    TEST_ASSERT_EQUAL_SCREENSHOT("widgets/roller_3.png");
+}
+
 #endif