diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index c65d07dd9..21faf1e5d 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -23,6 +23,7 @@ The GPU support for NXP microcontrollers is still not updated to the new draw ar
 - :warning: feat(fs): add caching option for lv_fs-read [`2979`](https://github.com/littlevgl/lvgl/pull/2979)
 - :warning: feat(span): lv_spangroup_get_expand_width() adds a parameter [`2968`](https://github.com/littlevgl/lvgl/pull/2968)
 - :warning: arch(draw): allow replacing the draw engine [`db53ea9`](https://github.com/littlevgl/lvgl/commit/db53ea925c9502b20f38db0fc30c4ef599bdfc33)
+- :warning: indexed images are not chroma keyed. Use the alpha chaneel instead. 
 
 ### Architectural
 
diff --git a/src/draw/lv_img_buf.h b/src/draw/lv_img_buf.h
index 984483e5e..de8819c8e 100644
--- a/src/draw/lv_img_buf.h
+++ b/src/draw/lv_img_buf.h
@@ -67,10 +67,10 @@ enum {
     LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED, /**< Same as `LV_IMG_CF_TRUE_COLOR` but LV_COLOR_TRANSP pixels
                                           will be transparent*/
 
-    LV_IMG_CF_INDEXED_1BIT, /**< Can have 2 different colors in a palette (always chroma keyed)*/
-    LV_IMG_CF_INDEXED_2BIT, /**< Can have 4 different colors in a palette (always chroma keyed)*/
-    LV_IMG_CF_INDEXED_4BIT, /**< Can have 16 different colors in a palette (always chroma keyed)*/
-    LV_IMG_CF_INDEXED_8BIT, /**< Can have 256 different colors in a palette (always chroma keyed)*/
+    LV_IMG_CF_INDEXED_1BIT, /**< Can have 2 different colors in a palette (can't be chroma keyed)*/
+    LV_IMG_CF_INDEXED_2BIT, /**< Can have 4 different colors in a palette (can't be chroma keyed)*/
+    LV_IMG_CF_INDEXED_4BIT, /**< Can have 16 different colors in a palette (can't be chroma keyed)*/
+    LV_IMG_CF_INDEXED_8BIT, /**< Can have 256 different colors in a palette (can't be chroma keyed)*/
 
     LV_IMG_CF_ALPHA_1BIT, /**< Can have one color and it can be drawn or not*/
     LV_IMG_CF_ALPHA_2BIT, /**< Can have one color but 4 different alpha value*/