Did you set the accent color of your Mac to green?
Or follow my post here:?
In Big Sur, applications can have an accent color to match the branding of the app: Notes is yellow, Music is red, Podcasts is purple, etc. Glyphs is using the standard blue color. The following line changes that to green:
defaults write com.GeorgSeifert.Glyphs3 AppleAccentColor 3
Relaunch Glyphs to see the effect. If you don’t like it, you can revert back by running this line:
defaults delete com.GeorgSeifert.Glyphs3 AppleAccentColor
This is what green Glyphs looks like:
[light]
[dark]
Or maybe you have one of the new green iMacs? In that case, could you post a screenshot of the System Settings of the selected color so I can see what shade of green that is.
