Do you mean in the "compile" tab? The background is controlled by your GTK theme, the foregrounds are as per the first 3 listed in https://www.geany.org/manual/current/index.html#customizing-geany-s-appearance-using-gtk-3-css
-- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/geany/geany/issues/2702#issuecomment-749955992