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Pure blackness not displayed correctly unless black PNG is selected as background. #18630

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opened 2026-01-31 06:19:41 +00:00 by claunia · 10 comments
claunia commented 2026-01-31 06:19:41 +00:00
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Originally created by @m4r1vs on GitHub (Oct 9, 2022).

Windows Terminal version

1.15.2712.0

Windows build number

10.0.19042.0

Other Software

Does not matter as this also happens with the terminal being freshly installed and independent of the selected shell (WSL, PowerShell, etc.).

Steps to reproduce

Change a theme's background colour to RGB(0,0,0) or create a new theme with pure black as the background colour.

Expected Behavior

I expected the colour of the background to be pure black.

Actual Behavior

the colour of the background being RGB(34, 34, 35). I had to create a pure black PNG and select that as my background image to achieve the blackness I wanted my terminal to be. It makes a HUGE difference, especially on OLED screens.

Originally created by @m4r1vs on GitHub (Oct 9, 2022). ### Windows Terminal version 1.15.2712.0 ### Windows build number 10.0.19042.0 ### Other Software Does not matter as this also happens with the terminal being freshly installed and independent of the selected shell (WSL, PowerShell, etc.). ### Steps to reproduce Change a theme's background colour to RGB(0,0,0) or create a new theme with pure black as the background colour. ### Expected Behavior I expected the colour of the background to be pure black. ### Actual Behavior the colour of the background being RGB(34, 34, 35). I had to create a pure black PNG and select that as my background image to achieve the blackness I wanted my terminal to be. It makes a HUGE difference, especially on OLED screens.
claunia added the Needs-TriageIssue-BugNeeds-Attention labels 2026-01-31 06:19:42 +00:00
claunia commented 2026-01-31 06:19:43 +00:00
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@DHowett commented on GitHub (Oct 9, 2022):

Thanks for the report! Can you share your settings.json file?

@DHowett commented on GitHub (Oct 9, 2022): Thanks for the report! Can you share your `settings.json` file?
claunia commented 2026-01-31 06:19:43 +00:00
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@m4r1vs commented on GitHub (Oct 9, 2022):

sure, here you go: https://gist.github.com/m4r1vs/9a97b4581dade3568a9c27925d74980d

@m4r1vs commented on GitHub (Oct 9, 2022): sure, here you go: [https://gist.github.com/m4r1vs/9a97b4581dade3568a9c27925d74980d](https://gist.github.com/m4r1vs/9a97b4581dade3568a9c27925d74980d)
claunia commented 2026-01-31 06:19:43 +00:00
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@237dmitry commented on GitHub (Oct 9, 2022):

What will be if you change background to '#000000' in an other profile? Also check ~/.bashrc (.zshrc). Maybe there are some host settings, esc, osc sequences and so on.

@237dmitry commented on GitHub (Oct 9, 2022): What will be if you change background to '#000000' in an other profile? Also check `~/.bashrc` (.zshrc). Maybe there are some host settings, esc, osc sequences and so on.
claunia commented 2026-01-31 06:19:43 +00:00
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@elsaco commented on GitHub (Oct 10, 2022):

@m4r1vs you have "useAcrylic": true in your "defaults". Does it make any difference if you disable acrylic material?

@elsaco commented on GitHub (Oct 10, 2022): @m4r1vs you have `"useAcrylic": true` in your `"defaults"`. Does it make any difference if you disable acrylic material?
claunia commented 2026-01-31 06:19:44 +00:00
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@m4r1vs commented on GitHub (Oct 10, 2022):

@elsaco Good idea, but it seems like it only changes what the title bar looks like :/

@m4r1vs commented on GitHub (Oct 10, 2022): @elsaco Good idea, but it seems like it only changes what the title bar looks like :/
claunia commented 2026-01-31 06:19:44 +00:00
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@m4r1vs commented on GitHub (Oct 10, 2022):

@237dmitry Yes, also the case when using PowerShell or CMD. It being influenced by WSL was my first thought as well though - and I spent too much time digging through my zsh's and prompt's configuration files before trying anything else haha. Happens both when setting the background of the default theme and also when changing the background of a newly created theme to anything darker than rgb(34,34,34).

Just tried it on my work computer and even though it's on Windows 11, it still has the same "issue"... As long as my little image-as-background workaround works though, I'm a happy Win Terminal user :)

@m4r1vs commented on GitHub (Oct 10, 2022): @237dmitry Yes, also the case when using PowerShell or CMD. It being influenced by WSL was my first thought as well though - and I spent too much time digging through my zsh's and prompt's configuration files before trying anything else haha. Happens both when setting the background of the default theme and also when changing the background of a newly created theme to anything darker than rgb(34,34,34). Just tried it on my work computer and even though it's on Windows 11, it still has the same "issue"... As long as my little image-as-background workaround works though, I'm a happy Win Terminal user :)
claunia commented 2026-01-31 06:19:44 +00:00
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@237dmitry commented on GitHub (Oct 10, 2022):

https://user-images.githubusercontent.com/78153320/194816975-8be0254f-96c3-4de0-88cd-86910e6974bb.mp4

@237dmitry commented on GitHub (Oct 10, 2022): https://user-images.githubusercontent.com/78153320/194816975-8be0254f-96c3-4de0-88cd-86910e6974bb.mp4
claunia commented 2026-01-31 06:19:44 +00:00
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@DHowett commented on GitHub (Oct 10, 2022):

@elsaco Good idea, but it seems like it only changes what the title bar looks like :/

Huh, this shouldn't be the case! The useAcrylic on line 45, inside profiles.defaults, applies to the background of the terminal pane. When it is enabled, you should see a somewhat fuzzy non-perfectly-black texture in the background of your terminal window.

That is separate from the useAcrylicInTabRow setting at the bottom (line 363 in the document you shared).

@DHowett commented on GitHub (Oct 10, 2022): > @elsaco Good idea, but it seems like it only changes what the title bar looks like :/ _Huh_, this shouldn't be the case! The `useAcrylic` on line 45, inside `profiles.defaults`, applies to the background of the terminal pane. When it is enabled, you should see a somewhat fuzzy non-perfectly-black texture in the background of your terminal window. That is separate from the `useAcrylicInTabRow` setting at the bottom (line 363 in the document you shared).
claunia commented 2026-01-31 06:19:44 +00:00
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@m4r1vs commented on GitHub (Oct 10, 2022):

@DHowett THANK YOU! Somehow I managed to have a different theme selected when trying to disable acrylic. I now disabled acrylic and chose a theme with a black background (it works as intended)... Closing now since there is no bug but only my own clumsiness to complain about.

@m4r1vs commented on GitHub (Oct 10, 2022): @DHowett THANK YOU! Somehow I managed to have a different theme selected when trying to disable acrylic. I now disabled acrylic and chose a theme with a black background (it works as intended)... Closing now since there is no bug but only my own clumsiness to complain about.
claunia commented 2026-01-31 06:19:45 +00:00
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@DHowett commented on GitHub (Oct 10, 2022):

Hah! I'm glad we could help 😄

@DHowett commented on GitHub (Oct 10, 2022): Hah! I'm glad we could help :smile:
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Reference: starred/terminal#18630
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