Autocompletion in git bash for windows flashes/blinks

[mlewand]

Environment

Windows build number: Version 10.0.19041.508
Windows Terminal version (if applicable): 1.2.2381.0

Any other software?
Git(git for Windows): 2.28.0

Steps to reproduce

1. Open a new git bash tab.
2. Navigate to your windows directory.
3. Type "cd syst".
4. Press tab twice.

Expected behavior

Screen doesn't flash, your command is unfolded to "cd system".

Actual behavior

Screen flashes gray for a moment.

If you inspect the gif frame-by-frame it actually inverts colors, rather than make it all single color:

Interestingly it doesn't happen consistently. If I backspace it twice (so that it is "cd syst" again) and press tab, there might be no flash this time.

It's not reproducible in git bash console app itself.

It's a regression that happened over last quarter or so, but I'm surprised I didn't find any existing issue on that.

Here's how the prfilefor bash is defined:

   "profiles": [
        {
            "acrylicOpacity": 1,
            "closeOnExit": true,
            "colorScheme": "Campbell",
            "commandline": "<basePath>\\usr\\bin\\bash.exe\" -i -l",
            "cursorColor": "#FFFFFF",
            "cursorShape": "bar",
            "fontFace": "Consolas",
            "fontSize": 8,
            "guid": "{0504d9fc-deca-44e1-83c4-213dca5023e7}",
            "historySize": 9001,
            "icon": "<basePath>\\mingw64\\share\\git\\git-for-windows.ico",
            "name": "Bash",
            "padding": "0, 0, 0, 0",
            "snapOnInput": true,
            "startingDirectory": "%USERPROFILE%",
            "useAcrylic": true
        },

[skyline75489]

It may sounds crazy but I think this is actual expected. It's a so-called "Visual Bell". Think of it as a replacement for audible bell.

[DHowett]

Yes, this is a "visual bell". Here is a comprehensive list of ways to turn of visual bells.

[mlewand]

Oh, thanks! Didn't know about that 👍

[martins-1992]

Considering the fact, that this effect does not appear in git bash for Windows itself,
wouldn't it be helpful to add an FAQ to https://docs.microsoft.com/de-de/windows/terminal/tips-and-tricks or even the App itself?

[DHowett]

Considering the fact, that this effect does not appear in git bash for Windows itself,

It will on a version of Windows where the console host has the aforementioned change. Promise.