Allow background colour (mcolor) for labels about lvgl HOT 7 CLOSED

Hi,
it is a good idea, thank you!
Do you mean if the label's style is NULL (inherited from parent) use transparent background and use mcolor as background color if label's style is explicitly set? Maybe the empty style attribute can disable this feature.

from lvgl.

Or just keep it as transparent unless it's explcitly set?

from lvgl.

Currently there is no tracking for a unique style attribute (like mcolor) whether it is set or not. Only I can see the entire style is inherited or not.

from lvgl.

If we think it further the label can use all backround related style attributes like mcolor, gcolor, bcolor, bopa etc. but only if its style is set explicitly. Else only use the inherited font, ccolor, letter space etc

What do you think?

from lvgl.

I added the update to beta. Now if a label's style is set by lv_obj_set_style() to not NULL then background will be drawn.
To avoid drawing background set empty=1 and bwidth=0 properties or copy LV_STYLE_TRANSP when initializing a new label style.

Tests are still needed to see how it effect existing objects where labels are used.

from lvgl.

Just had chance to test this but only for a straight label. Looks very good.

from lvgl.

Thanks for testing!

from lvgl.