Gnome Screenruler 无颜色显示问题求助
Hey Richard, sorry to hear you're stuck with this annoying screenruler color glitch—let's walk through some practical fixes that might get it auto-picking your system palette again:
Reset Screen Ruler's configuration completely
Sometimes leftover config files (even after uninstalling) can cause weird behavior. Open a terminal and run this command to wipe all saved settings for the extension:dconf reset -f /org/gnome/shell/extensions/screenruler/
After running it, pressAlt+F2, typer, and hit Enter to restart the GNOME Shell. Then launch Screen Ruler again and see if it grabs your system colors automatically.Test with the default system theme
Custom themes can sometimes break how extensions interact with GNOME's color palette. Head to Settings > Appearance and switch back to the default Yaru theme (either light or dark variant). Log out and log back in, then check if Screen Ruler picks up the theme colors without manual setup.Verify "Use System Colors" toggle is enabled
Open the Screen Ruler settings again—make sure the option to use system colors is turned on. If it was already on, try toggling it off, applying, then toggling it back on. This can kickstart the color sync process.Reinstall the latest extension version
The version in Synaptic might be outdated and not fully compatible with Ubuntu 22.04's GNOME 42. Open the GNOME Extensions app, find Screen Ruler, uninstall it, then reinstall the latest version directly from the app. This often fixes compatibility gaps with newer GNOME releases.
If none of these work, it might be a bug in the extension's interaction with GNOME 42's color scheme system. You could report the issue to the extension's developers, including details like your Ubuntu version, GNOME version, and Screen Ruler version to help them diagnose it faster.
备注:内容来源于stack exchange,提问作者Richard

