starred/terminal
1
0
Fork 0
mirror of https://github.com/microsoft/terminal.git synced 2026-02-04 05:35:20 +00:00
Code Issues 19.0k Packages Projects Releases 20 Wiki Activity

Continue SGR 5 blinking when Terminal is out of focus (but not minimized) #23777

New Issue
Closed
opened 2026-01-31 08:52:12 +00:00 by claunia · 5 comments
claunia commented 2026-01-31 08:52:12 +00:00
Owner
Copy Link

Originally created by @Nick2bad4u on GitHub (Nov 5, 2025).

Windows Terminal version

Windows Terminal Preview Version: 1.24.2812.0

Windows build number

10.0.22631.0 Microsoft Windows NT 10.0.22631.0

Other Software

N/A

Steps to reproduce

Link to screencast: https://i.gyazo.com/690eb0d26d19c1d1f46f831558c3acaa.mp4

https://github.com/user-attachments/assets/19583495-ffbe-4609-8393-d9f0b8dbba55

Steps to Reproduce

  1. Open Windows Terminal.
  2. Display a large ANSI-formatted output (for example, using Vim, or a CLI application with lots of colors).
    (If you want the exact script I'm using: ansi-star-wars-ndh-r2d2.ps1
  3. Unfocus/minimize the Terminal window.
  4. Observe color values shifting slightly between states until focus is restored. I've noticed it mainly happens with grey colors.

I can provide any other data upon request.

Expected Behavior

ANSI display colors should remain consistent, regardless of window focus (unless using the unfocused theming in wt preview obviously)

Actual Behavior

Colors shift back and forth while the window is not focused. This results in visual flicker or inconsistency for ANSI color output until the window regains focus.

Originally created by @Nick2bad4u on GitHub (Nov 5, 2025). ### Windows Terminal version Windows Terminal Preview Version: 1.24.2812.0 ### Windows build number 10.0.22631.0 Microsoft Windows NT 10.0.22631.0 ### Other Software N/A ### Steps to reproduce Link to screencast: [https://i.gyazo.com/690eb0d26d19c1d1f46f831558c3acaa.mp4](https://i.gyazo.com/690eb0d26d19c1d1f46f831558c3acaa.mp4) https://github.com/user-attachments/assets/19583495-ffbe-4609-8393-d9f0b8dbba55 ## Steps to Reproduce 1. Open Windows Terminal. 2. Display a large ANSI-formatted output (for example, using Vim, or a CLI application with lots of colors). (If you want the exact script I'm using: [ansi-star-wars-ndh-r2d2.ps1](https://raw.githubusercontent.com/Nick2bad4u/PS-Color-Scripts-Enhanced/81844d2c6c419288b48fb36831872b53e53f37ca/ColorScripts-Enhanced/Scripts/ansi-star-wars-ndh-r2d2.ps1) 3. Unfocus/minimize the Terminal window. 4. Observe color values shifting slightly between states until focus is restored. I've noticed it mainly happens with grey colors. I can provide any other data upon request. ### Expected Behavior ANSI display colors should remain consistent, regardless of window focus (unless using the unfocused theming in wt preview obviously) ### Actual Behavior Colors shift back and forth while the window is not focused. This results in visual flicker or inconsistency for ANSI color output until the window regains focus.
claunia added the Area-RenderingIssue-TaskPriority-3Needs-Tag-FixProduct-Terminal labels 2026-01-31 08:52:13 +00:00
claunia commented 2026-01-31 08:52:14 +00:00
Author
Owner
Copy Link

@DHowett commented on GitHub (Nov 5, 2025):

So! This image uses SGR 5 ("Blink") which dims and brightens the foreground color every second or so--every other cursor blink, actually.

Terminal suspends the blinking cursor when it loses focus, and so likewise it suspends the timer that blinks text with the SGR 5 blink rendition.

For now, that means the dim text will remain dim if it was dim when it lost focus, and remain bright if it was bright when it lost focus.

Perhaps we should keep SGR 5 blinking blinking when the window is out of focus?

@DHowett commented on GitHub (Nov 5, 2025): So! This image uses `SGR 5` ("Blink") which dims and brightens the foreground color every second or so--every other cursor blink, actually. Terminal suspends the blinking cursor when it loses focus, and so likewise it suspends the timer that blinks text with the SGR 5 blink rendition. For now, that means the dim text will remain dim if it was dim when it lost focus, and remain bright if it was bright when it lost focus. Perhaps we should keep SGR 5 blinking blinking when the window is out of focus?
claunia commented 2026-01-31 08:52:15 +00:00
Author
Owner
Copy Link

@DHowett commented on GitHub (Nov 5, 2025):

(Also: I suspect your r2-d2 will look a lot better if you turn on builtinGlyphs. I know that it messes with the authorial intent of the font, but it eliminates the gaps between sections filled with the unicode block characters :P)

@DHowett commented on GitHub (Nov 5, 2025): (Also: I suspect your r2-d2 will look a lot better if you turn on `builtinGlyphs`. I know that it messes with the authorial intent of the font, but it eliminates the gaps between sections filled with the unicode block characters :P)
claunia commented 2026-01-31 08:52:15 +00:00
Author
Owner
Copy Link

@Nick2bad4u commented on GitHub (Nov 5, 2025):

So! This image uses SGR 5 ("Blink") which dims and brightens the foreground color every second or so--every other cursor blink, actually.

Terminal suspends the blinking cursor when it loses focus, and so likewise it suspends the timer that blinks text with the SGR 5 blink rendition.

For now, that means the dim text will remain dim if it was dim when it lost focus, and remain bright if it was bright when it lost focus.

Perhaps we should keep SGR 5 blinking blinking when the window is out of focus?

Wow I didn't even know that was a character you could use.

If that's the case I would say this is working as intended then.

Built in glyphs doesn't seem to make a difference when I enable it?

Are you getting a better picture with it on? I turned it off because it was causing some alignment issues I thought but that was a long time ago

I'll try turning it on when I'm back at my PC.

Edit: you're correct it does look better thanks for the tip..you can probably close this as it's working as intended and I just didnt realize there's a blink character 😭

@Nick2bad4u commented on GitHub (Nov 5, 2025): > So! This image uses `SGR 5` ("Blink") which dims and brightens the foreground color every second or so--every other cursor blink, actually. > > Terminal suspends the blinking cursor when it loses focus, and so likewise it suspends the timer that blinks text with the SGR 5 blink rendition. > > For now, that means the dim text will remain dim if it was dim when it lost focus, and remain bright if it was bright when it lost focus. > > Perhaps we should keep SGR 5 blinking blinking when the window is out of focus? Wow I didn't even know that was a character you could use. If that's the case I would say this is working as intended then. Built in glyphs doesn't seem to make a difference when I enable it? Are you getting a better picture with it on? I turned it off because it was causing some alignment issues I thought but that was a long time ago I'll try turning it on when I'm back at my PC. Edit: you're correct it does look better thanks for the tip..you can probably close this as it's working as intended and I just didnt realize there's a blink character 😭
claunia commented 2026-01-31 08:52:15 +00:00
Author
Owner
Copy Link

@DHowett commented on GitHub (Jan 23, 2026):

You know, funny enough, we kept this around... and fixed it with #19330!

@DHowett commented on GitHub (Jan 23, 2026): You know, funny enough, we kept this around... and fixed it with #19330!
claunia commented 2026-01-31 08:52:15 +00:00
Author
Owner
Copy Link

@Nick2bad4u commented on GitHub (Jan 23, 2026):

You know, funny enough, we kept this around... and fixed it with #19330!

well done thanks for following up!

pleasure as always - Nick

@Nick2bad4u commented on GitHub (Jan 23, 2026): > You know, funny enough, we kept this around... and fixed it with [#19330](https://github.com/microsoft/terminal/pull/19330)! well done thanks for following up! pleasure as always - Nick
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
⛺ Reserved
A11yCO
A11yMAS
A11ySev1
A11ySev2
A11ySev3
A11yTTValidated
A11yUsable
A11yVoiceAccess
A11yWCAG
Area-Accessibility
Area-AtlasEngine
Area-AzureShell
Area-Build
Area-Build
Area-Chat
Area-CmdPal
Area-CodeHealth
Area-Commandline
Area-CookedRead
Area-DefApp
Area-Extensibility
Area-Fonts
Area-GroupPolicy
Area-i18n
Area-Input
Area-Interaction
Area-Interop
Area-Localization
Area-Output
Area-Performance
Area-Portable
Area-Quality
Area-Remoting
Area-Rendering
Area-Schema
Area-Server
Area-Settings
Area-SettingsUI
Area-ShellExtension
Area-ShellExtension
Area-ShellExtension
Area-Suggestions
Area-Suggestions
Area-TerminalConnection
Area-TerminalControl
Area-Theming
Area-UserInterface
Area-VT
Area-Windowing
Area-WPFControl
AutoMerge
Blocking-Ingestion
Culprit-Centennial
Culprit-WinUI
Disability-All
Disability-Blind
Disability-LowVision
Disability-Mobility
External-Blocked-WinUI3
Fixed
Gathering-Data
good first issue
HCL-E+D
HCL-WindowsTerminal
Help Wanted
Impact-Compatibility
Impact-Compliance
Impact-Correctness
Impact-Visual
In-PR
InclusionBacklog
InclusionBacklog-Windows TerminalWin32
InclusionCommitted-202206
Issue-Bug
Issue-Docs
Issue-Feature
Issue-Feature
Issue-Question
Issue-Samples
Issue-Scenario
Issue-Task
Needs-Attention
Needs-Author-Feedback
Needs-Bisect
Needs-Discussion
Needs-Repro
Needs-Tag-Fix
Needs-Tag-Fix
Needs-Triage
No-Recent-Activity
Priority-0
Priority-1
Priority-2
Priority-3
Product-Cmd.exe
Product-Colortool
Product-Colortool
Product-Colortool
Product-Conhost
Product-Conpty
Product-Meta
Product-Powershell
Product-Terminal
Product-WSL
pull-request
Mirrored from GitHub Pull Request
 Resolution-Answered
Resolution-By-Design
Resolution-Duplicate
Resolution-External
Resolution-Fix-Available
Resolution-Fix-Committed
Resolution-No-Repro
Resolution-Won't-Fix
Severity-Blocking
Severity-Crash
Severity-DataLoss
spam
this-will-be-a-breaking-change
Tracking-External
WindowsTerminal_Win32
Work-Item
zAskModeBug
zInbox-Bug
No Label Area-Rendering Issue-Task Needs-Tag-Fix Priority-3 Product-Terminal
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
claunia
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/terminal#23777
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?