Selection in editor mode using color that containing alpha channel

Bug graveyard
1

Steps to reproduce

  • in obsidian.css set --text-selection to the colour with alpha channel (e.g. rgba(255, 255, 0, 0.4);
  • open a note with more than 2 paragraph of texts
  • drag a cursor to select more than one paragraph

Expected result

expect to see selection part with defined smooth color

Actual result

one paragraph is okay

Screenshot 2020-06-12 at 10.03.16
Screenshot 2020-06-12 at 10.03.161336×1208 85.1 KB

two or more paragraph results as follows:
Screenshot 2020-06-12 at 10.03.21
Screenshot 2020-06-12 at 10.03.211336×1208 83.7 KB

No problem with solid color (without alpha channel)

Environment

  • Operating system: MacOS
  • Obsidian version: 0.7.1
  • Using custom CSS: Pisum theme (need to change the text-selection manually)

Additional information

2

Does this happen with the default css?

3

Just confirm. It also happens in default css.

4

Sorry I don’t think we can fix this. We’ve updated the editor to use non-transparent colors for selection, and this issue should go away now.

This is how CodeMirror selection works, and CodeMirror uses colors without alpha value to bypass this problem as well.

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