diff --git a/lv_conf_template.h b/lv_conf_template.h
index c648391f7..229bb82fa 100644
--- a/lv_conf_template.h
+++ b/lv_conf_template.h
@@ -391,23 +391,26 @@ typedef void * lv_font_user_data_t;
 
 /*Always enable at least on theme*/
 
-/*No theme, you can apply your styles as you need*/
-#define LV_USE_THEME_EMPTY       0
+/* No theme, you can apply your styles as you need
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
+ #define LV_USE_THEME_EMPTY       1
 
-/*Simple to the create your theme based on it*/
-#define LV_USE_THEME_TEMPLATE    0
+/*Simple to the create your theme based on it
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
+ #define LV_USE_THEME_TEMPLATE    1
 
 /* A fast and impressive theme.
  * Flags:
  * LV_THEME_MATERIAL_FLAG_LIGHT: light theme
  * LV_THEME_MATERIAL_FLAG_DARK: dark theme*/
-#define LV_USE_THEME_MATERIAL    1
+ #define LV_USE_THEME_MATERIAL    1
 
 /* Mono-color theme for monochrome displays.
  * If LV_THEME_DEFAULT_COLOR_PRIMARY is LV_COLOR_BLACK the
  * texts and borders will be black and the background will be
- * white. Else the colors are inverted. */
-#define LV_USE_THEME_MONO        0
+ * white. Else the colors are inverted.
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
+ #define LV_USE_THEME_MONO        1
 
 #define LV_THEME_DEFAULT_INCLUDE            <stdint.h>      /*Include a header for the init. function*/
 #define LV_THEME_DEFAULT_INIT               lv_theme_material_init
diff --git a/src/lv_conf_internal.h b/src/lv_conf_internal.h
index 5ff472a9a..e9a023e8a 100644
--- a/src/lv_conf_internal.h
+++ b/src/lv_conf_internal.h
@@ -580,14 +580,16 @@
 
 /*Always enable at least on theme*/
 
-/*No theme, you can apply your styles as you need*/
+/* No theme, you can apply your styles as you need
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
 #ifndef LV_USE_THEME_EMPTY
-#define LV_USE_THEME_EMPTY       0
+ #define LV_USE_THEME_EMPTY       1
 #endif
 
-/*Simple to the create your theme based on it*/
+/*Simple to the create your theme based on it
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
 #ifndef LV_USE_THEME_TEMPLATE
-#define LV_USE_THEME_TEMPLATE    0
+ #define LV_USE_THEME_TEMPLATE    1
 #endif
 
 /* A fast and impressive theme.
@@ -595,15 +597,16 @@
  * LV_THEME_MATERIAL_FLAG_LIGHT: light theme
  * LV_THEME_MATERIAL_FLAG_DARK: dark theme*/
 #ifndef LV_USE_THEME_MATERIAL
-#define LV_USE_THEME_MATERIAL    1
+ #define LV_USE_THEME_MATERIAL    1
 #endif
 
 /* Mono-color theme for monochrome displays.
  * If LV_THEME_DEFAULT_COLOR_PRIMARY is LV_COLOR_BLACK the
  * texts and borders will be black and the background will be
- * white. Else the colors are inverted. */
+ * white. Else the colors are inverted.
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
 #ifndef LV_USE_THEME_MONO
-#define LV_USE_THEME_MONO        0
+ #define LV_USE_THEME_MONO        1
 #endif
 
 #ifndef LV_THEME_DEFAULT_INCLUDE
diff --git a/tests/build.py b/tests/build.py
index 4fe4a4bae..0677fdc50 100755
--- a/tests/build.py
+++ b/tests/build.py
@@ -215,6 +215,7 @@ all_obj_all_features = {
   "LV_USE_LOG":1,
   "LV_USE_THEME_MATERIAL":1,   
   "LV_USE_THEME_EMPTY":1,  
+  "LV_USE_THEME_MONO":1, 
   "LV_USE_THEME_TEMPLATE":1,  
   "LV_THEME_DEFAULT_INIT": "\\\"lv_theme_material_init\\\"",
   "LV_THEME_DEFAULT_COLOR_PRIMARY":      "\\\"LV_COLOR_RED\\\"",