Liam Howatt

Hi, thanks for the tip. I'm not seeing it work even for `I1`. From left to right: `LV_COLOR_FORMAT_I1`, `LV_COLOR_FORMAT_I2`, `LV_COLOR_FORMAT_I4`, `LV_COLOR_FORMAT_I8`, `LV_COLOR_FORMAT_L8` (`L8` works). 

Am I using it correctly? If so, I think there are still some issues. `I8` looks good though. Maybe add this as a test case if you want.  ```c...

> In this way, the patch can be simplified to below one. FYI I got a weird memory error with your patch, XuNeo

Aha, I see how it works RE blue being the index.

If I understand correctly, yes, that aspect is the same in version 9 compared to version 8. https://docs.lvgl.io/master/overview/obj.html Regarding `lv_obj_set_style_transform_angle`, that should work since it's mapped using an [API mapping...

Do you get a compiler error or do they not work as intended at runtime?

Is it a binary image? See #6193. This is a known weakness of binary images. https://docs.lvgl.io/master/widgets/image.html#transformations > The transformations require the whole image to be available. Therefore indexed images (`LV_COLOR_FORMAT_I1/2/4/8_...`),...

Interesting. Could you please send some code to reproduce the issue?

I can't seem to reproduce it. Does it work perfectly when you don't set the angle?

You mentioned the CPU goes to 100%. There's a chance an `LV_ASSERT` failed and the default behavior is to spin forever (`while(1);`). Do you have a way of getting a...