diff --git a/lv_misc/anim.c b/lv_misc/anim.c
index 52329652f..6104bc362 100644
--- a/lv_misc/anim.c
+++ b/lv_misc/anim.c
@@ -8,6 +8,7 @@
  *********************/
 #include <string.h>
 #include "anim.h"
+#include "misc/math/math_base.h"
 #include "misc/os/ptask.h"
 #include "hal/systick/systick.h"
 
@@ -42,6 +43,12 @@ static anim_path_t anim_path_lin[] =
 		 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
 		 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192};
 
+static anim_path_t anim_path_step[] =
+		{64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+		 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+         64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+         64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 192,};
+
 /**********************
  *      MACROS
  **********************/
@@ -137,6 +144,9 @@ anim_path_t * anim_get_path(anim_path_name_t name)
 		case ANIM_PATH_LIN:
 			return anim_path_lin;
 			break;
+		case ANIM_PATH_STEP:
+			return anim_path_step;
+			break;
 		default:
 			return NULL;
 			break;
diff --git a/lv_misc/anim.h b/lv_misc/anim.h
index 2d7f18f55..1c1de9017 100644
--- a/lv_misc/anim.h
+++ b/lv_misc/anim.h
@@ -22,6 +22,7 @@
 typedef enum
 {
 	ANIM_PATH_LIN,
+	ANIM_PATH_STEP,
 }anim_path_name_t;
 
 typedef uint8_t anim_path_t;
diff --git a/lv_obj/lv_obj.c b/lv_obj/lv_obj.c
index d7ef16e97..75cc974e5 100644
--- a/lv_obj/lv_obj.c
+++ b/lv_obj/lv_obj.c
@@ -79,7 +79,7 @@ void lv_init(void)
 }
 
 /**
- * Mark the object as invalid therefor it will be redrawn by 'lv_refr_task'
+ * Mark the object as invalid therefore its current position will be redrawn by 'lv_refr_task'
  * @param obj pointer to an object
  */
 void lv_obj_inv(lv_obj_t * obj)
@@ -125,14 +125,14 @@ void lv_obj_refr_style(lv_obj_t * obj)
 
 /**
  * Notify all object if a style is modified
- * @param style_p pinter to a style. Only objects with this style will be notified
+ * @param style pinter to a style. Only objects with this style will be notified
  *               (NULL to notify all objects)
  */
-void lv_style_refr_all(void * style_p)
+void lv_style_refr_all(void * style)
 {
     lv_obj_t * i;
     LL_READ(scr_ll, i) {
-        lv_style_refr_core(style_p, i);
+        lv_style_refr_core(style, i);
     }
 }
 
@@ -777,13 +777,13 @@ void lv_obj_set_ext_size(lv_obj_t * obj, cord_t ext_size)
  * @param obj pointer to an object
  * @param style_p pointer to the new style
  */
-void lv_obj_set_style(lv_obj_t * obj, void * style_p)
+void lv_obj_set_style(lv_obj_t * obj, void * style)
 {
 
 	if(obj->style_iso != 0) {
 		dm_free(obj->style_p);
 	}
-    obj->style_p = style_p;
+    obj->style_p = style;
 
     /*Send a style change signal to the object*/
     obj->signal_f(obj, LV_SIGNAL_STYLE_CHG, NULL);
@@ -849,11 +849,11 @@ void lv_obj_set_opar(lv_obj_t * obj, uint8_t opa)
 /**
  * Hide an object. It won't be visible and clickable.
  * @param obj pointer to an object
- * @param hidden_en true: hide the object
+ * @param en true: hide the object
  */
-void lv_obj_set_hidden(lv_obj_t * obj, bool hidden_en)
+void lv_obj_set_hidden(lv_obj_t * obj, bool en)
 {
-    obj->hidden = hidden_en == false ? 0 : 1;
+    obj->hidden = en == false ? 0 : 1;
     
     lv_obj_t * par = lv_obj_get_parent(obj);
     par->signal_f(par, LV_SIGNAL_CHILD_CHG, obj);
@@ -864,11 +864,11 @@ void lv_obj_set_hidden(lv_obj_t * obj, bool hidden_en)
 /**
  * Enable or disable the clicking of an object
  * @param obj pointer to an object
- * @param click_en true: make the object clickable
+ * @param en true: make the object clickable
  */
-void lv_obj_set_click(lv_obj_t * obj, bool click_en)
+void lv_obj_set_click(lv_obj_t * obj, bool en)
 {
-    obj->click_en = (click_en == true ? 1 : 0);
+    obj->click_en = (en == true ? 1 : 0);
     
 }
 
@@ -876,42 +876,42 @@ void lv_obj_set_click(lv_obj_t * obj, bool click_en)
  * Enable to bring this object to the foreground if it
  * or any of its children is clicked
  * @param obj pointer to an object
- * @param top_en true: enable the auto top feature
+ * @param en true: enable the auto top feature
  */
-void lv_obj_set_top(lv_obj_t * obj, bool top_en)
+void lv_obj_set_top(lv_obj_t * obj, bool en)
 {
-    obj->top_en= (top_en == true ? 1 : 0);
+    obj->top_en= (en == true ? 1 : 0);
 }
 
 /**
  * Enable the dragging of an object
  * @param obj pointer to an object
- * @param drag_en true: make the object dragable
+ * @param en true: make the object dragable
  */
-void lv_obj_set_drag(lv_obj_t * obj, bool drag_en)
+void lv_obj_set_drag(lv_obj_t * obj, bool en)
 {
-    obj->drag_en = (drag_en == true ? 1 : 0);
+    obj->drag_en = (en == true ? 1 : 0);
 }
 
 /**
  * Enable the throwing of an object after is is dragged
  * @param obj pointer to an object
- * @param dragthr_en true: enable the drag throw
+ * @param en true: enable the drag throw
  */
-void lv_obj_set_drag_throw(lv_obj_t * obj, bool dragthr_en)
+void lv_obj_set_drag_throw(lv_obj_t * obj, bool en)
 {
-    obj->drag_throw_en = (dragthr_en == true ? 1 : 0);
+    obj->drag_throw_en = (en == true ? 1 : 0);
 }
 
 /**
  * Enable to use parent for drag related operations. 
  * If trying to drag the object the parent will be moved instead 
  * @param obj pointer to an object
- * @param dragpar_en true: enable the 'drag parent' for the object
+ * @param en true: enable the 'drag parent' for the object
  */
-void lv_obj_set_drag_parent(lv_obj_t * obj, bool dragpar_en)
+void lv_obj_set_drag_parent(lv_obj_t * obj, bool en)
 {
-    obj->drag_parent = (dragpar_en == true ? 1 : 0);
+    obj->drag_parent = (en == true ? 1 : 0);
 }
 
 /**
diff --git a/lv_obj/lv_obj.h b/lv_obj/lv_obj.h
index 400aa20cd..d2755b977 100644
--- a/lv_obj/lv_obj.h
+++ b/lv_obj/lv_obj.h
@@ -170,7 +170,7 @@ typedef enum
 void lv_init(void);
 void lv_obj_inv(lv_obj_t * obj);
 void lv_obj_refr_style(lv_obj_t * obj);
-void lv_style_refr_all(void * style_p);
+void lv_style_refr_all(void * style);
 
 /*Create and delete*/
 lv_obj_t * lv_obj_create(lv_obj_t * parent, lv_obj_t * copy);
@@ -199,21 +199,21 @@ void lv_obj_align(lv_obj_t * obj,lv_obj_t * base, lv_align_t align, cord_t x_mod
 void lv_obj_align_us(lv_obj_t * obj,lv_obj_t * base, lv_align_t align, cord_t x_mod, cord_t y_mod);
 void lv_obj_set_ext_size(lv_obj_t * obj, cord_t ext_size);
 /*Appearance set*/
-void lv_obj_set_hidden(lv_obj_t * obj, bool hidden_en);
+void lv_obj_set_hidden(lv_obj_t * obj, bool en);
 void lv_obj_set_opa(lv_obj_t * obj, opa_t opa);
 void lv_obj_set_opar(lv_obj_t * obj, opa_t opa);
 /*Attribute set*/
-void lv_obj_set_click(lv_obj_t * obj, bool click_en);
-void lv_obj_set_top(lv_obj_t * obj, bool click_en);
-void lv_obj_set_drag(lv_obj_t * obj, bool drag_en);
-void lv_obj_set_drag_throw(lv_obj_t * obj, bool dragthr_en);
-void lv_obj_set_drag_parent(lv_obj_t * obj, bool dragpar_en);
+void lv_obj_set_click(lv_obj_t * obj, bool en);
+void lv_obj_set_top(lv_obj_t * obj, bool en);
+void lv_obj_set_drag(lv_obj_t * obj, bool en);
+void lv_obj_set_drag_throw(lv_obj_t * obj, bool en);
+void lv_obj_set_drag_parent(lv_obj_t * obj, bool en);
 void lv_obj_set_signal_f(lv_obj_t * obj, lv_signal_f_t fp);
 void lv_obj_set_design_f(lv_obj_t * obj, lv_design_f_t fp);
 /*Other set*/
 void * lv_obj_alloc_ext(lv_obj_t * obj, uint16_t ext_size);
 void lv_obj_refr_ext_size(lv_obj_t * obj);
-void lv_obj_set_style(lv_obj_t * obj, void * style_p);
+void lv_obj_set_style(lv_obj_t * obj, void * style);
 void * lv_obj_iso_style(lv_obj_t * obj, uint32_t style_size);
 void lv_obj_set_free_num(lv_obj_t * obj, uint8_t free_num);
 void lv_obj_set_free_p(lv_obj_t * obj, void * free_p);
diff --git a/lv_objx/lv_btn.c b/lv_objx/lv_btn.c
index 6560bc700..53a6a004e 100644
--- a/lv_objx/lv_btn.c
+++ b/lv_objx/lv_btn.c
@@ -6,7 +6,12 @@
 /*********************
  *      INCLUDES
  *********************/
-#include "lv_conf.h"
+
+#include <lvgl/lv_misc/area.h>
+#include <lvgl/lv_obj/lv_obj.h>
+#include <misc/others/color.h>
+#include <stdbool.h>
+
 #if USE_LV_BTN != 0
 
 #include <string.h>
diff --git a/lv_objx/lv_btnm.c b/lv_objx/lv_btnm.c
index 61dafb7d9..4b91c5790 100644
--- a/lv_objx/lv_btnm.c
+++ b/lv_objx/lv_btnm.c
@@ -126,10 +126,10 @@ bool lv_btnm_signal(lv_obj_t * btnm, lv_signal_t sign, void * param)
 /**
  * Set a new map. Buttons will be created/deleted according to the map.
  * @param btnm pointer to a button matrix object
- * @param map pointer a string array. Tha last string hast be: "".
+ * @param map pointer a string array. The last string has to be: "".
  *            Use "\n" to begin a new line.
- *            Use "\003" octal numbers to set relative
- *            the width of a button. (max. 9 -> \011)
+ *            Use octal numbers (e.g. "\003") to set the relative
+ *            width of a button. (max. 9 -> \011)
  *            (e.g. const char * str[] = {"a", "b", "\n", "\004c", "d", ""}).
  */
 void lv_btnm_set_map(lv_obj_t * btnm, const char ** map)
@@ -143,10 +143,9 @@ void lv_btnm_set_map(lv_obj_t * btnm, const char ** map)
 
 	/*Set size and positions of the buttons*/
 	lv_btnms_t * btnms = lv_obj_get_style(btnm);
-	cord_t max_w = lv_obj_get_width(btnm) - 2 * btnms->bg.hpad;
-	cord_t max_h = lv_obj_get_height(btnm) - 2 * btnms->bg.vpad;
-	cord_t act_y = btnms->bg.vpad;
-	uint8_t btn_cnt_tot = 0;	/*Used to set free number of the buttons*/
+	cord_t max_w = lv_obj_get_width(btnm) - 2 * btnms->rects.hpad;
+	cord_t max_h = lv_obj_get_height(btnm) - 2 * btnms->rects.vpad;
+	cord_t act_y = btnms->rects.vpad;
 
 	/*Count the lines to calculate button height*/
 	uint8_t line_cnt = 1;
@@ -155,13 +154,14 @@ void lv_btnm_set_map(lv_obj_t * btnm, const char ** map)
 			if(strcmp(map[li], "\n") == 0) line_cnt ++;
 	}
 
-	cord_t btn_h = max_h - ((line_cnt - 1) * btnms->bg.opad);
+	cord_t btn_h = max_h - ((line_cnt - 1) * btnms->rects.opad);
 	btn_h = btn_h / line_cnt;
 
 	/* Count the units and the buttons in a line
 	 * (A button can be 1,2,3... unit wide)*/
 	uint16_t unit_cnt;
-	uint16_t btn_cnt;
+	uint16_t btn_cnt;		/*Number of buttons in a row*/
+	uint16_t i_tot = 0;		/*Act. index in the str map*/
 	const char  ** map_p_tmp = map;
 	lv_obj_t * btn;
 	btn = ll_get_head(&btnm->child_ll);
@@ -170,6 +170,7 @@ void lv_btnm_set_map(lv_obj_t * btnm, const char ** map)
 	while(1) {
 		unit_cnt = 0;
 		btn_cnt = 0;
+		/*Count the buttons in a line*/
 		while(strcmp(map_p_tmp[btn_cnt], "\n") != 0 &&
 			  strlen(map_p_tmp[btn_cnt]) != 0) { /*Check a line*/
 			unit_cnt += lv_btnm_get_width_unit(map_p_tmp[btn_cnt]);
@@ -179,31 +180,32 @@ void lv_btnm_set_map(lv_obj_t * btnm, const char ** map)
 		/*Only deal with the non empty lines*/
 		if(btn_cnt != 0) {
 			/*Calculate the unit width*/
-			cord_t unit_w = max_w - ((btn_cnt-1) * btnms->bg.opad);
+			cord_t unit_w = max_w - ((btn_cnt-1) * btnms->rects.opad);
 			unit_w = unit_w / unit_cnt;
 
 			/*Set the button size and positions and set the texts*/
 			uint16_t i;
 			lv_obj_t * label;
-			cord_t act_x = btnms->bg.hpad;
+			cord_t act_x = btnms->rects.hpad;
 			for(i = 0; i < btn_cnt; i++) {
 				lv_obj_set_size(btn, unit_w * lv_btnm_get_width_unit(map_p_tmp[i]), btn_h);
 				lv_obj_align(btn, NULL, LV_ALIGN_IN_TOP_LEFT, act_x, act_y);
-				lv_obj_set_free_num(btn, btn_cnt_tot);
-				lv_obj_set_style(btn, &btnms->btn);
-				act_x += lv_obj_get_width(btn) + btnms->bg.opad;
+				lv_obj_set_free_num(btn, i_tot);
+				lv_obj_set_style(btn, &btnms->btns);
+				act_x += lv_obj_get_width(btn) + btnms->rects.opad;
 
 				label = lv_obj_get_child(btn, NULL); /*Get the label on the button (the only child)*/
-				lv_obj_set_style(label, &btnms->btn_label);
+				lv_obj_set_style(label, &btnms->labels);
 				lv_label_set_text(label, map_p_tmp[i]);
 
 				btn = ll_get_next(&btnm->child_ll, btn); /*Go to the next button*/
-				btn_cnt_tot ++;
+				i_tot++;
 			}
 		}
-		act_y += btn_h + btnms->bg.opad;
+		act_y += btn_h + btnms->rects.opad;
 		if(strlen(map_p_tmp[btn_cnt]) == 0) break; /*Break on end of map*/
 		map_p_tmp = &map_p_tmp[btn_cnt + 1]; /*Set the map to the next line*/
+		i_tot ++;	/*Skip the '\n'*/
 	}
 
 }
@@ -312,9 +314,9 @@ static bool lv_btnm_design(lv_obj_t * obj, const area_t * mask, lv_design_mode_t
 static void lv_btnms_init(void)
 {
 	/*Default style*/
-	lv_rects_get(LV_RECTS_DEF, &lv_btnms_def.bg);	 /*Background rectangle style*/
-	lv_btns_get(LV_BTNS_DEF, &lv_btnms_def.btn);	 	 /*Button style*/
-	lv_labels_get(LV_LABELS_BTN, &lv_btnms_def.btn_label);	 /*BUtton label style*/
+	lv_rects_get(LV_RECTS_DEF, &lv_btnms_def.rects);	 /*Background rectangle style*/
+	lv_btns_get(LV_BTNS_DEF, &lv_btnms_def.btns);	 	 /*Button style*/
+	lv_labels_get(LV_LABELS_BTN, &lv_btnms_def.labels);	 /*BUtton label style*/
 }
 
 /**
diff --git a/lv_objx/lv_btnm.h b/lv_objx/lv_btnm.h
index 387f57861..a957f790d 100644
--- a/lv_objx/lv_btnm.h
+++ b/lv_objx/lv_btnm.h
@@ -4,12 +4,6 @@
  */
 
 
-/*Search an replace: button matrix -> object normal name with lower case (e.g. button, label etc.)
- * 					 btnm -> object short name with lower case(e.g. btn, label etc)
- *                   BTNM -> object short name with upper case (e.g. BTN, LABEL etc.)
- *
- */
-
 #ifndef LV_BTNM_H
 #define LV_BTNM_H
 
@@ -35,10 +29,10 @@
 /*Style of button matrix*/
 typedef struct
 {
-	lv_rects_t bg;	/*Style of ancestor*/
+	lv_rects_t rects;	/*Style of ancestor*/
 	/*New style element for this type */
-	lv_btns_t btn;
-	lv_labels_t btn_label;
+	lv_btns_t btns;		/*Style of the buttons*/
+	lv_labels_t labels; /*Style of the labels on the buttons*/
 }lv_btnms_t;
 
 /*Built-in styles of button matrix*/
@@ -48,13 +42,14 @@ typedef enum
 }lv_btnms_builtin_t;
 
 /* Type of callback function which is called when a button is released
- * Parameters: button matrix, released object, button index in the map string*/
-typedef bool (*lv_btnm_callback_t) (lv_obj_t *, lv_obj_t *, uint16_t);
+ * Parameters: button matrix, released object, button index in the map string
+ * return false: the released button or the button matrix is deleted else true*/
+typedef bool (*lv_btnm_callback_t) (lv_obj_t *, lv_obj_t *, uint8_t);
 
 /*Data of button matrix*/
 typedef struct
 {
-	lv_rect_ext_t bg;	/*Ext. of ancestor*/
+	lv_rect_ext_t rect;	/*Ext. of ancestor*/
 	/*New data for this type */
 	const char ** map_p;	/*Pointer to the current map*/
 	lv_btnm_callback_t cb;
diff --git a/lv_objx/lv_cb.c b/lv_objx/lv_cb.c
index 5dc7c0da8..631ca1e76 100644
--- a/lv_objx/lv_cb.c
+++ b/lv_objx/lv_cb.c
@@ -80,6 +80,8 @@ lv_obj_t * lv_cb_create(lv_obj_t * par, lv_obj_t * copy)
     	lv_cb_ext_t * copy_ext = lv_obj_get_ext(copy);
     	ext->bullet = lv_btn_create(new_cb, copy_ext->bullet);
     	ext->label = lv_label_create(new_cb, copy_ext->label);
+
+        lv_obj_set_style(new_cb, lv_obj_get_style(copy));
     }
 
     lv_obj_align_us(new_cb, NULL, LV_ALIGN_CENTER, 0, 0);
@@ -241,22 +243,27 @@ static void lv_cbs_init(void)
 	lv_cbs_def.bullet.mcolor[LV_BTN_STATE_REL] = COLOR_WHITE;
 	lv_cbs_def.bullet.gcolor[LV_BTN_STATE_REL] = COLOR_SILVER;
 	lv_cbs_def.bullet.bcolor[LV_BTN_STATE_REL] = COLOR_BLACK;
+	lv_cbs_def.bullet.light_en[LV_BTN_STATE_REL] = 0;
 
 	lv_cbs_def.bullet.mcolor[LV_BTN_STATE_PR] = COLOR_SILVER;
 	lv_cbs_def.bullet.gcolor[LV_BTN_STATE_PR] = COLOR_GRAY;
 	lv_cbs_def.bullet.bcolor[LV_BTN_STATE_PR] = COLOR_BLACK;
+	lv_cbs_def.bullet.light_en[LV_BTN_STATE_PR] = 0;
 
 	lv_cbs_def.bullet.mcolor[LV_BTN_STATE_TGL_REL] = COLOR_MAKE(0x20, 0x30, 0x40);
 	lv_cbs_def.bullet.gcolor[LV_BTN_STATE_TGL_REL] = COLOR_MAKE(0x10, 0x20, 0x30);
 	lv_cbs_def.bullet.bcolor[LV_BTN_STATE_TGL_REL] = COLOR_WHITE;
+	lv_cbs_def.bullet.light_en[LV_BTN_STATE_TGL_REL] = 0;
 
 	lv_cbs_def.bullet.mcolor[LV_BTN_STATE_TGL_PR] = COLOR_MAKE(0x50, 0x70, 0x90);
 	lv_cbs_def.bullet.gcolor[LV_BTN_STATE_TGL_PR] = COLOR_MAKE(0x20, 0x30, 0x40);
 	lv_cbs_def.bullet.bcolor[LV_BTN_STATE_TGL_PR] = COLOR_WHITE;
+	lv_cbs_def.bullet.light_en[LV_BTN_STATE_TGL_PR] = 0;
 
 	lv_cbs_def.bullet.mcolor[LV_BTN_STATE_INA] = COLOR_SILVER;
 	lv_cbs_def.bullet.gcolor[LV_BTN_STATE_INA] = COLOR_GRAY;
 	lv_cbs_def.bullet.bcolor[LV_BTN_STATE_INA] = COLOR_WHITE;
+	lv_cbs_def.bullet.light_en[LV_BTN_STATE_INA] = 0;
 
 	lv_cbs_def.bullet.rects.bwidth = 2 * LV_STYLE_MULT;
 	lv_cbs_def.bullet.rects.bopa = 70;
diff --git a/lv_objx/lv_chart.c b/lv_objx/lv_chart.c
index 53fe49457..c6b3e6aa4 100644
--- a/lv_objx/lv_chart.c
+++ b/lv_objx/lv_chart.c
@@ -396,7 +396,7 @@ static void lv_chart_draw_div(lv_obj_t * chart, const area_t * mask)
 		p1.y = (int32_t)((int32_t)h * div_i) / (ext->hdiv_num + 1);
 		p1.y +=  y_ofs;
 		p2.y = p1.y;
-		lv_draw_line(&p1, &p2, mask, &style->div_line, div_opa);
+		lv_draw_line(&p1, &p2, mask, &style->div_lines, div_opa);
 	}
 
 	p1.y = 0 + y_ofs;
@@ -405,7 +405,7 @@ static void lv_chart_draw_div(lv_obj_t * chart, const area_t * mask)
 		p1.x = (int32_t)((int32_t)w * div_i) / (ext->vdiv_num + 1);
 		p1.x +=  x_ofs;
 		p2.x = p1.x;
-		lv_draw_line(&p1, &p2, mask, &style->div_line, div_opa);
+		lv_draw_line(&p1, &p2, mask, &style->div_lines, div_opa);
 	}
 }
 
@@ -575,15 +575,15 @@ static void lv_charts_init(void)
 {
 	/*Default style*/
 	/* Background */
-	lv_rects_get(LV_RECTS_DEF, &lv_charts_def.bg);
-	lv_charts_def.bg.objs.color = COLOR_MAKE(0x60, 0x80, 0xA0);
-	lv_charts_def.bg.gcolor = COLOR_WHITE;
-	lv_charts_def.bg.bcolor = COLOR_BLACK;
+	lv_rects_get(LV_RECTS_DEF, &lv_charts_def.bg_rects);
+	lv_charts_def.bg_rects.objs.color = COLOR_MAKE(0x60, 0x80, 0xA0);
+	lv_charts_def.bg_rects.gcolor = COLOR_WHITE;
+	lv_charts_def.bg_rects.bcolor = COLOR_BLACK;
 
 	/* Div. line */
-	lv_lines_get(LV_LINES_DECOR, &lv_charts_def.div_line);
-	lv_charts_def.div_line.width = 1 * LV_STYLE_MULT;
-	lv_charts_def.div_line.objs.color = COLOR_BLACK;
+	lv_lines_get(LV_LINES_DECOR, &lv_charts_def.div_lines);
+	lv_charts_def.div_lines.width = 1 * LV_STYLE_MULT;
+	lv_charts_def.div_lines.objs.color = COLOR_BLACK;
 	lv_charts_def.div_line_opa = OPA_COVER;
 
 	/*Data lines*/
diff --git a/lv_objx/lv_chart.h b/lv_objx/lv_chart.h
index 630ed1c9d..25182cfdd 100644
--- a/lv_objx/lv_chart.h
+++ b/lv_objx/lv_chart.h
@@ -35,9 +35,9 @@ typedef enum
 /*Style of chart background*/
 typedef struct
 {
-	lv_rects_t bg; /*Style of ancestor*/
+	lv_rects_t bg_rects; /*Style of ancestor*/
 	/*New style element for this type */
-	lv_lines_t div_line;
+	lv_lines_t div_lines;
 	uint8_t div_line_opa;		/*Percentage of obj. opacity*/
 	color_t color[LV_CHART_DL_NUM];	/*Line/Point/Col color */
 	uint16_t width;				/*Line width or point radius*/
@@ -54,7 +54,7 @@ typedef enum
 /*Data of chart background*/
 typedef struct
 {
-	lv_rect_ext_t bg;	/*Ext. of ancestor*/
+	lv_rect_ext_t bg_rects;	/*Ext. of ancestor*/
 	/*New data for this type */
 	cord_t ymin;
 	cord_t ymax;
diff --git a/lv_objx/lv_img.h b/lv_objx/lv_img.h
index eefb6eb38..2f57bb0bd 100644
--- a/lv_objx/lv_img.h
+++ b/lv_objx/lv_img.h
@@ -44,20 +44,20 @@ typedef struct
 {
 	/*No ext. because inherited from the base object*/ /*Ext. of ancestor*/
 	/*New data for this type */
-    char* fn;
-    cord_t w;
-    cord_t h;
-    uint8_t auto_size 	:1;
+    char* fn;	/*Image file name. E.g. "U:/my_image"*/
+    cord_t w;	/*Width of the image (if LV_UPSCALE_MAP != 0 then multiplied by LV_DOWNSCALE)*/
+    cord_t h;	/*Height of the image (if LV_UPSCALE_MAP != 0 then multiplied by LV_DOWNSCALE)*/
+    uint8_t auto_size 	:1;		/*1: automatically set the object size to the image size*/
     uint8_t transp 	    :1; 	/*Transp. bit in the images header (library handles this)*/
 }lv_img_ext_t;
 
 /*Image header*/
 typedef struct
 {
-	uint16_t w;
-	uint16_t h;
-	uint16_t cd;		/*Color depth*/
-	uint16_t transp :1;	/*Do not draw LV_IMG_TRANSP_COLOR pixels*/
+	uint16_t w;			/*Width of the image map*/
+	uint16_t h;     	/*Height of the image map*/
+	uint16_t cd;		/*Color depth (8/16 or 24)*/
+	uint16_t transp :1;	/*1: Do not draw LV_IMG_TRANSP_COLOR pixels*/
 }lv_img_raw_header_t;
 
 
diff --git a/lv_objx/lv_list.c b/lv_objx/lv_list.c
index c08bb70b2..4284e8f25 100644
--- a/lv_objx/lv_list.c
+++ b/lv_objx/lv_list.c
@@ -140,7 +140,7 @@ lv_obj_t * lv_list_add(lv_obj_t * list, const char * img_fn, const char * txt, b
 
 	/*Make the size adjustment*/
 	if(ext->fit == LV_LIST_FIT_HOLDER) {
-		/*Now the width will be adjusted*/
+		/*Now the width will be adjusted (so disable hor. auto fit)*/
 		lv_rect_set_fit(liste, false, true);
 		cord_t w = lv_obj_get_width(list);
 		w -= lists->bg_pages.bg_rects.hpad * 2;
diff --git a/lv_objx/lv_page.h b/lv_objx/lv_page.h
index 76abc1587..11ba1d0d2 100644
--- a/lv_objx/lv_page.h
+++ b/lv_objx/lv_page.h
@@ -69,7 +69,7 @@ typedef struct
 lv_obj_t * lv_page_create(lv_obj_t * par, lv_obj_t * copy);
 void lv_page_glue_obj(lv_obj_t * page, bool glue);
 lv_pages_t * lv_pages_get(lv_pages_builtin_t style, lv_pages_t * copy);
-bool lv_page_signal(lv_obj_t * page, lv_signal_t sign, void * param);
+bool lv_page_signal(lv_obj_t * page, lv_signal_t sign, void  * param);
 
 /**********************
  *      MACROS
diff --git a/lv_objx/lv_pb.c b/lv_objx/lv_pb.c
index 87d7bdbfd..159ba1b6a 100644
--- a/lv_objx/lv_pb.c
+++ b/lv_objx/lv_pb.c
@@ -73,8 +73,8 @@ lv_obj_t * lv_pb_create(lv_obj_t * par, lv_obj_t * copy)
 
     /*Init the new progress bar object*/
     if(copy == NULL) {
-    	ext->format = dm_alloc(strlen(LV_PB_DEF_FORMAT) + 1);
-    	strcpy(ext->format, LV_PB_DEF_FORMAT);
+    	ext->format_str = dm_alloc(strlen(LV_PB_DEF_FORMAT) + 1);
+    	strcpy(ext->format_str, LV_PB_DEF_FORMAT);
     	ext->min_value = 0;
     	ext->max_value = 100;
     	ext->act_value = 0;
@@ -89,8 +89,8 @@ lv_obj_t * lv_pb_create(lv_obj_t * par, lv_obj_t * copy)
     	lv_pb_set_value(new_pb, ext->act_value);
     } else {
     	lv_pb_ext_t * ext_copy = lv_obj_get_ext(copy);
-    	ext->format = dm_alloc(strlen(ext_copy->format) + 1);
-		strcpy(ext->format, ext_copy->format);
+    	ext->format_str = dm_alloc(strlen(ext_copy->format_str) + 1);
+		strcpy(ext->format_str, ext_copy->format_str);
 		ext->min_value = ext_copy->min_value;
 		ext->max_value = ext_copy->max_value;
 		ext->act_value = ext_copy->act_value;
@@ -122,7 +122,7 @@ bool lv_pb_signal(lv_obj_t * pb, lv_signal_t sign, void * param)
     		lv_pb_set_value(pb, ext->act_value);
     		break;
     	case LV_SIGNAL_CLEANUP:
-    		dm_free(ext->format);
+    		dm_free(ext->format_str);
     		break;
     		default:
     			break;
@@ -147,7 +147,7 @@ void lv_pb_set_value(lv_obj_t * pb, uint16_t value)
 	ext->act_value = value > ext->max_value ? ext->max_value : value;
 
 	char buf[LV_PB_TXT_MAX_LENGTH];
-	sprintf(buf, ext->format, ext->act_value);
+	sprintf(buf, ext->format_str, ext->act_value);
 	lv_label_set_text(lv_obj_get_child(pb, NULL), buf);
 
 	lv_obj_inv(pb);
@@ -172,16 +172,16 @@ void lv_pb_set_min_max_value(lv_obj_t * pb, uint16_t min, uint16_t max)
 }
 
 /**
- * Set format string  for the label of the progress bar
+ * Set format string for the label of the progress bar
  * @param pb pointer to progress bar object
  * @param format a printf-like format string with one number (e.g. "Loading (%d)")
  */
-void lv_pb_set_format(lv_obj_t * pb, const char * format)
+void lv_pb_set_format_str(lv_obj_t * pb, const char * format)
 {
 	lv_pb_ext_t * ext = lv_obj_get_ext(pb);
-	dm_free(ext->format);
-	ext->format = dm_alloc(strlen(format) + 1);
-	strcpy(ext->format, format);
+	dm_free(ext->format_str);
+	ext->format_str = dm_alloc(strlen(format) + 1);
+	strcpy(ext->format_str, format);
 	lv_pb_set_value(pb, ext->act_value);
 }
 
diff --git a/lv_objx/lv_pb.h b/lv_objx/lv_pb.h
index ef7e69506..4f50da372 100644
--- a/lv_objx/lv_pb.h
+++ b/lv_objx/lv_pb.h
@@ -46,7 +46,7 @@ typedef struct
 	uint16_t act_value;
 	uint16_t min_value;
 	uint16_t max_value;
-	char * format; /*Format string of the label*/
+	char * format_str; /*Format string of the label*/
 }lv_pb_ext_t;
 
 /**********************
@@ -56,7 +56,7 @@ lv_obj_t * lv_pb_create(lv_obj_t * par, lv_obj_t * copy);
 bool lv_pb_signal(lv_obj_t * obj, lv_signal_t sign, void * param);
 void lv_pb_set_value(lv_obj_t * obj, uint16_t value);
 void lv_pb_set_min_max_value(lv_obj_t * obj, uint16_t min, uint16_t max);
-void lv_pb_set_format(lv_obj_t * obj, const char * format);
+void lv_pb_set_format_str(lv_obj_t * obj, const char * format);
 uint16_t lv_pb_get_value(lv_obj_t * obj);
 lv_pbs_t * lv_pbs_get(lv_pbs_builtin_t style, lv_pbs_t * copy_p);
 
diff --git a/lv_objx/lv_rect.h b/lv_objx/lv_rect.h
index 120bfb9fe..1ad8e5de2 100644
--- a/lv_objx/lv_rect.h
+++ b/lv_objx/lv_rect.h
@@ -31,13 +31,13 @@ typedef enum
 	LV_RECT_LAYOUT_COL_L,	/*Column left align*/
 	LV_RECT_LAYOUT_COL_M,	/*Column middle align*/
 	LV_RECT_LAYOUT_COL_R,	/*Column right align*/
-	LV_RECT_LAYOUT_ROW_T,	/*Row row left align*/
-	LV_RECT_LAYOUT_ROW_M,	/*Row row middle align*/
-	LV_RECT_LAYOUT_ROW_B,	/*Row row right align*/
-	LV_RECT_LAYOUT_GRID,
+	LV_RECT_LAYOUT_ROW_T,	/*Row left align*/
+	LV_RECT_LAYOUT_ROW_M,	/*Row middle align*/
+	LV_RECT_LAYOUT_ROW_B,	/*Row right align*/
+	LV_RECT_LAYOUT_GRID,	/*Put as many object as possible in row and begin a new row*/
 }lv_rect_layout_t;
 
-/*Style of template*/
+/*Style of rectangle*/
 typedef struct
 {
 	lv_objs_t objs;	/*Style of ancestor*/
@@ -45,17 +45,17 @@ typedef struct
     color_t gcolor; /*Gradient color*/
     color_t bcolor;	/*Border color*/
     color_t lcolor;	/*Light color*/
-    uint16_t bwidth;
-    uint16_t round;
-    cord_t hpad;
-    cord_t vpad;
-    cord_t opad;
+    uint16_t bwidth;/*Border width*/
+    uint16_t round; /*Radius on the corners*/
+    cord_t hpad;	/*Horizontal padding when horizontal fit is enabled*/
+    cord_t vpad;	/*Vertical padding when vertical fit is enabled*/
+    cord_t opad;	/*Object padding with fit*/
     cord_t light;	/*Light size*/
-    uint8_t bopa;
-    uint8_t empty :1;
+    uint8_t bopa;	/*Border opacity*/
+    uint8_t empty :1; /*1: Do not draw the body of the rectangle*/
 }lv_rects_t;
 
-/*Built-in styles of template*/
+/*Built-in styles of rectangle*/
 typedef enum
 {
 	LV_RECTS_DEF,
diff --git a/lv_objx/lv_ta.c b/lv_objx/lv_ta.c
index 927a595fc..042bcd820 100644
--- a/lv_objx/lv_ta.c
+++ b/lv_objx/lv_ta.c
@@ -11,12 +11,16 @@
 #if USE_LV_TA != 0
 
 #include "lv_ta.h"
+#include "lvgl/lv_misc/anim.h"
 #include "../lv_draw/lv_draw.h"
 
 /*********************
  *      DEFINES
  *********************/
 #define LV_TA_MAX_LENGTH	512
+#define LV_TA_DEF_WIDTH		120
+#define LV_TA_DEF_HEIGHT	80
+#define LV_TA_CUR_BLINK_TIME 400	/*ms*/
 
 /**********************
  *      TYPEDEFS
@@ -27,6 +31,7 @@
  **********************/
 static bool lv_ta_design(lv_obj_t * ta, const area_t * mask, lv_design_mode_t mode);
 static bool lv_ta_scrling_design(lv_obj_t * scrling, const area_t * mask, lv_design_mode_t mode);
+static void lv_ta_hide_cursor(lv_obj_t * ta, uint8_t hide);
 static void lv_ta_save_valid_cursor_x(lv_obj_t * ta);
 static void lv_tas_init(void);
 
@@ -75,6 +80,7 @@ lv_obj_t * lv_ta_create(lv_obj_t * par, lv_obj_t * copy)
 
     ext->cursor_valid_x = 0;
     ext->cursor_pos = 0;
+    ext->cur_hide = 0;
 
     /*Init the new text area object*/
     if(copy == NULL) {
@@ -82,12 +88,14 @@ lv_obj_t * lv_ta_create(lv_obj_t * par, lv_obj_t * copy)
     	if(scrling_design_f == NULL) {
     		scrling_design_f = lv_obj_get_design_f(ext->page.scrolling);
     	}
+
     	lv_obj_set_design_f(ext->page.scrolling, lv_ta_scrling_design);
     	lv_label_set_long_mode(ext->label, LV_LABEL_LONG_BREAK);
-    	lv_label_set_text(ext->label, "abc aaaa bbbb ccc\n123\nABC\nxyz\nwww\n007\nalma\n:)\naaaaaa");
+    	lv_label_set_text(ext->label, "Text area");
     	lv_page_glue_obj(ext->label, true);
     	lv_obj_set_click(ext->label, true);
     	lv_obj_set_style(new_ta, lv_tas_get(LV_TAS_DEF, NULL));
+    	lv_obj_set_size_us(new_ta, LV_TA_DEF_WIDTH, LV_TA_DEF_HEIGHT);
     }
     /*Copy an existing object*/
     else {
@@ -100,6 +108,20 @@ lv_obj_t * lv_ta_create(lv_obj_t * par, lv_obj_t * copy)
     	lv_obj_set_style(new_ta, lv_obj_get_style(copy));
     }
     
+    /*Create a cursor blinker animation*/
+    anim_t a;
+    a.var = new_ta;
+    a.fp = (anim_fp_t)lv_ta_hide_cursor;
+    a.time = LV_TA_CUR_BLINK_TIME;
+    a.act_time = 0;
+    a.end_cb = NULL;
+    a.repeat = 1;
+    a.repeat_pause = 0;
+    a.playback = 1;
+    a.playback_pause = 0;
+    a.path = anim_get_path(ANIM_PATH_STEP);
+    anim_create(&a);
+
     return new_ta;
 }
 
@@ -124,10 +146,11 @@ bool lv_ta_signal(lv_obj_t * ta, lv_signal_t sign, void * param)
     	lv_tas_t * style = lv_obj_get_style(ta);
     	switch(sign) {
     		case LV_SIGNAL_CLEANUP:
-    			lv_obj_del(ext->label);
+    			/* Nothing to clean up.
+    			 * (The created label will be deleted automatically) */
     			break;
     		case LV_SIGNAL_STYLE_CHG:
-    			lv_obj_set_style(ext->label, &style->label);
+    			lv_obj_set_style(ext->label, &style->labels);
     	    	lv_obj_set_width(ext->label, lv_obj_get_width(ta) - 2 *
     	    			(style->pages.bg_rects.hpad + style->pages.scrable_rects.hpad));
     	    	lv_label_set_text(ext->label, NULL);
@@ -206,6 +229,21 @@ void lv_ta_add_text(lv_obj_t * ta, const char * txt)
 	lv_ta_save_valid_cursor_x(ta);
 }
 
+/**
+ * Set the text os a text area
+ * @param ta pointer to a text area
+ * @param txt pointer to the text
+ */
+void lv_ta_set_text(lv_obj_t * ta, const char * txt)
+{
+	lv_ta_ext_t * ext = lv_obj_get_ext(ta);
+	lv_label_set_text(ext->label, txt);
+	lv_ta_set_cursor_pos(ta, LV_TA_CUR_LAST);
+
+	/*It is a valid x step so save it*/
+	lv_ta_save_valid_cursor_x(ta);
+}
+
 /**
  * Delete a the left character from the current cursor position
  * @param ta pointer to a text area object
@@ -234,17 +272,22 @@ void lv_ta_del(lv_obj_t * ta)
 	lv_ta_save_valid_cursor_x(ta);
 }
 
+
 /**
  * Set the cursor position
  * @param obj pointer to a text area object
  * @param pos the new cursor position in character index
+ *             < 0 : index from the end of the text
+ *             LV_TA_CUR_LAST: go after the last character
  */
-void lv_ta_set_cursor_pos(lv_obj_t * ta, uint16_t pos)
+void lv_ta_set_cursor_pos(lv_obj_t * ta, int16_t pos)
 {
 	lv_ta_ext_t * ext = lv_obj_get_ext(ta);
 	uint16_t txt_len = strlen(lv_label_get_text(ext->label));
 
-	if(pos > txt_len) pos = txt_len;
+	if(pos < 0) pos = txt_len + pos;
+
+	if(pos > txt_len || pos == LV_TA_CUR_LAST) pos = txt_len;
 
 	ext->cursor_pos = pos;
 
@@ -252,7 +295,7 @@ void lv_ta_set_cursor_pos(lv_obj_t * ta, uint16_t pos)
 	lv_obj_t * label_par = lv_obj_get_parent(ext->label);
 	point_t cur_pos;
 	lv_tas_t * style = lv_obj_get_style(ta);
-	const font_t * font_p = font_get(style->label.font);
+	const font_t * font_p = font_get(style->labels.font);
 	lv_label_get_letter_pos(ext->label, pos, &cur_pos);
 
 	/*Check the top*/
@@ -462,7 +505,7 @@ static bool lv_ta_scrling_design(lv_obj_t * scrling, const area_t * mask, lv_des
 		lv_ta_ext_t * ta_ext = lv_obj_get_ext(ta);
 		lv_tas_t * ta_style = lv_obj_get_style(ta);
 
-		if(ta_style->cursor_show != 0) {
+		if(ta_style->cursor_show != 0 && ta_ext->cur_hide == 0) {
 			uint16_t cur_pos = lv_ta_get_cursor_pos(ta);
 			point_t letter_pos;
 			lv_label_get_letter_pos(ta_ext->label, cur_pos, &letter_pos);
@@ -487,6 +530,21 @@ static bool lv_ta_scrling_design(lv_obj_t * scrling, const area_t * mask, lv_des
 	return true;
 }
 
+
+/**
+ * Set the cursor visibility to make a blinking cursor
+ * @param ta pointer to a text area
+ * @param hide 1: hide the cursor, 0: draw it
+ */
+static void lv_ta_hide_cursor(lv_obj_t * ta, uint8_t hide)
+{
+	lv_ta_ext_t * ta_ext = lv_obj_get_ext(ta);
+	ta_ext->cur_hide = hide  == 0 ? 0 : 1;
+
+	lv_obj_inv(ta);
+
+}
+
 /**
  * Save the cursor x position as valid. It is important when jumping up/down to a shorter line
  * @param ta pointer to a text area object
@@ -507,11 +565,11 @@ static void lv_tas_init(void)
 	/*Default style*/
 	lv_pages_get(LV_PAGES_DEF, &lv_tas_def.pages);
 
-	lv_labels_get(LV_LABELS_TXT, &lv_tas_def.label);
-	lv_tas_def.label.objs.color = COLOR_MAKE(0x20, 0x20, 0x20);
+	lv_labels_get(LV_LABELS_TXT, &lv_tas_def.labels);
+	lv_tas_def.labels.objs.color = COLOR_MAKE(0x20, 0x20, 0x20);
 
 	lv_tas_def.cursor_color = COLOR_MAKE(0x10, 0x10, 0x10);
-	lv_tas_def.cursor_width = 2 * LV_STYLE_MULT;	/*>1 px for visible cursor*/
+	lv_tas_def.cursor_width = 1 * LV_STYLE_MULT;	/*>=1 px for visible cursor*/
 	lv_tas_def.cursor_show = 1;
 }
 #endif
diff --git a/lv_objx/lv_ta.h b/lv_objx/lv_ta.h
index f792960da..0a3e846db 100644
--- a/lv_objx/lv_ta.h
+++ b/lv_objx/lv_ta.h
@@ -19,6 +19,7 @@
 /*********************
  *      DEFINES
  *********************/
+#define LV_TA_CUR_LAST (0x7FFF) /*Put the cursor after the last character*/
 
 /**********************
  *      TYPEDEFS
@@ -29,7 +30,7 @@ typedef struct
 {
 	lv_pages_t pages;	/*Style of ancestor*/
 	/*New style element for this type */
-	lv_labels_t label;
+	lv_labels_t labels;
 	color_t cursor_color;
 	cord_t cursor_width;
 	uint8_t cursor_show :1;
@@ -49,6 +50,7 @@ typedef struct
 	lv_obj_t * label;
 	cord_t cursor_valid_x;
 	uint16_t cursor_pos;
+	uint8_t cur_hide :1;	/*Indicates that the cursor is visible now or not*/
 }lv_ta_ext_t;
 
 /**********************
@@ -60,8 +62,9 @@ lv_tas_t * lv_tas_get(lv_tas_builtin_t style, lv_tas_t * copy);
 
 void lv_ta_add_char(lv_obj_t * ta, char c);
 void lv_ta_add_text(lv_obj_t * ta, const char * txt);
+void lv_ta_set_text(lv_obj_t * ta, const char * txt);
 void lv_ta_del(lv_obj_t * ta);
-void lv_ta_set_cursor_pos(lv_obj_t * ta, uint16_t pos);
+void lv_ta_set_cursor_pos(lv_obj_t * ta, int16_t pos);
 void lv_ta_cursor_right	(lv_obj_t * ta);
 void lv_ta_cursor_left(lv_obj_t * taj);
 void lv_ta_cursor_down(lv_obj_t * ta);
diff --git a/lv_objx/lv_win.c b/lv_objx/lv_win.c
index ccf0167e8..9fd1a22d6 100644
--- a/lv_objx/lv_win.c
+++ b/lv_objx/lv_win.c
@@ -82,7 +82,7 @@ lv_obj_t * lv_win_create(lv_obj_t * par, lv_obj_t * copy)
 
     	/*Create a holder for the control buttons*/
     	ext->ctrl_holder = lv_rect_create(ext->header, NULL);
-    	lv_rect_set_fit(ext->ctrl_holder, true, true);
+    	lv_rect_set_fit(ext->ctrl_holder, true, false);
     	lv_rect_set_layout(ext->ctrl_holder, LV_RECT_LAYOUT_ROW_M);
 
     	/*Create a page for the content*/
@@ -229,6 +229,32 @@ void lv_win_set_title(lv_obj_t * win, const char * title)
 /*=====================
  * Getter functions
  *====================*/
+/**
+ * Get the title of a window
+ * @param win pointer to a window object
+ * @return title string of the window
+ */
+const char * lv_win_get_title(lv_obj_t * win)
+{
+	lv_win_ext_t * ext = lv_obj_get_ext(win);
+
+	return ext->title;
+}
+
+/**
+ * Get the pointer of a widow from one of  its control button.
+ * It is useful in the action of the control buttons where only button is known.
+ * @param ctrl_btn pointer to a control button of a window
+ * @return pointer to the window of 'ctrl_btn'
+ */
+lv_obj_t * lv_win_get_from_ctrl_btn(lv_obj_t * ctrl_btn)
+{
+	lv_obj_t * ctrl_holder = lv_obj_get_parent(ctrl_btn);
+	lv_obj_t * header = lv_obj_get_parent(ctrl_holder);
+	lv_obj_t * win = lv_obj_get_parent(header);
+
+	return win;
+}
 
 /**
  * Return with a pointer to a built-in style and/or copy it to a variable
@@ -369,6 +395,7 @@ static void lv_win_realign(lv_obj_t * win)
 		cbtn = lv_obj_get_child(ext->ctrl_holder, cbtn);
 	}
 
+	lv_obj_set_height(ext->ctrl_holder, style->ctrl_btn_h + 2 * style->ctrl_holder.vpad * 2);
 	lv_obj_set_width(ext->header, lv_obj_get_width(win));
 	lv_obj_set_size(ext->content, lv_obj_get_width(win), lv_obj_get_height(win) - lv_obj_get_height(ext->header));
 
diff --git a/lv_objx/lv_win.h b/lv_objx/lv_win.h
index 3846bd69a..226eb384d 100644
--- a/lv_objx/lv_win.h
+++ b/lv_objx/lv_win.h
@@ -71,6 +71,8 @@ lv_wins_t * lv_wins_get(lv_wins_builtin_t style, lv_wins_t * copy);
 lv_obj_t * lv_win_add_ctrl_btn(lv_obj_t * win, const char * img, bool (*rel_action)(lv_obj_t *, lv_dispi_t *));
 void lv_win_set_title(lv_obj_t * win, const char * title);
 
+const char * lv_win_get_title(lv_obj_t * win);
+lv_obj_t * lv_win_get_from_ctrl_btn(lv_obj_t * ctrl_btn);
 /**********************
  *      MACROS
  **********************/
diff --git a/lvgl.h b/lvgl.h
index 78c85b799..faba488ec 100644
--- a/lvgl.h
+++ b/lvgl.h
@@ -29,8 +29,8 @@
  *      DEFINES
  *********************/
 #define LVGL_VERSION_MAJOR 1
-#define LVGL_VERSION_MINOR 2
-#define LVGL_VERSION_BUGFIX 4
+#define LVGL_VERSION_MINOR 3
+#define LVGL_VERSION_BUGFIX 1
 
 /**********************
  *      TYPEDEFS