fix(render): Deal with incomplete wallpapers #3096
Merged
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What type of PR is this? (check all applicable)
Description
If the root pixmap does not fully cover the bar window, some pseudo-transparent areas were filled with unitialized data, causing pixelation or other rendering artifacts.
Now, observed background slices are first filled with black to make sure this does not happen and they print an error if not the full pixmap can be filled.
Related Issues & Documents
Fixes #3041
Documentation (check all applicable)