Linux
Paleta Changes Terminal Colors On The Fly, Independently Of The Used Terminal Emulator
Paleta is a tool for changing terminal colors on the fly, independently of the used terminal emulator. It supports VTE terminal emulators (GNOME Terminal, Xfce Terminal, Mate Terminal, Guake, Termite, etc.), Konsole, Alacritty, Kitty, Xterm and urxvt (and probably others).