microsoft / microsoft/terminal
Transparent background doesn't become transparent foreground when rendered in reverse video
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- Dominant language
- C++
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Description
The new Preview 1.2.2022.0 seems to fix all the VT colors issues I observed before, except one last case:
When the background color is the default (49), it is correctly kept transparent, but if the foreground color is transparent, which is possible when the background is 49 and then the colors are reversed using 7, it is rendered as black instead of transparent.
echo -e "\e[31m\u2580\e[7m\u2580\e[m"
echo -e "\e[31m\u2590\e[7m\u25A0\e[27m\u258C\e[m"
In both cases, there should be no black square, the acrylic transparency should show through instead.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the issue in Windows Terminal with the two provided escape-sequence commands, then trace the VT color and reverse-video rendering path. Done means transparent foreground regions remain acrylic-transparent rather than rendering as black in both examples; add or update coverage for these cases if the relevant test location is found.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- desktop-dev, operating-systems
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100