13 effects

Chromatic Aberration, RGB Split & Color

Chromatic Split separates the red, green and blue channels and moves them apart. A real lens does a small amount of this because it cannot focus every wavelength at the same point, which is why an exaggerated version reads instantly as a broken image rather than a stylized one.

Most of the category is color replacement rather than color adjustment. Palette does it three ways: as a gradient map it throws away the original hues and re-colors the image by brightness alone, and as a palette or retro palette it snaps every pixel to the nearest entry in a fixed one, which is what gives 8-bit and Game Boy looks their particular flatness. Adaptive Palette reads a palette out of the image first. Film Look's stocks, cross-processing and grain reproduce what happens in chemistry.

Image Adjustment holds the ordinary grading controls - curves and levels, HSL, color temperature, channel mixing - here because a glitch usually needs grading after it to sit right. The unusual ones are Color Gravity Collapse, Palette Infection and Dead Channel Reconstruction, which treat color as something that can spread, fail, or be guessed back from what survived.