fix(renderer): Small gaps when rendering emojis #2802
Merged
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What type of PR is this? (check all applicable)
Description
If any rendered text uses a non-integer number of pixels (often emojis),
rendering of subsequent text blocks will start between pixels which
results in small gaps in the background and over/underline colors caused
by cairo only rendering at fractional-intensity in the beginning and end
pixel.
Simply rounding up text width can solve this.
Related Issues & Documents
Fixes #2785
Documentation (check all applicable)