Cinematic Grade

Cinematic Grade is a real-time color filter implemented as a panel applet and shell extension for the Cinnamon desktop on Linux. It provides cinematic color grading and sharpening effects applied via GLSL shaders inside the Muffin compositor, without altering monitor ICC profiles or gamma ramps. It supports multiple presets, toggleable via panel icon or keyboard shortcut (Super+G), and works seamlessly on Cinnamon versions 6.0 and later.