This is a paid asset, but now you can download Color Correction Pro Free.
Detail this asset from Unity Store: Original Link
Color Correction Pro v0.9
“Color Correction Pro” is designed for more professional adjustment of camera effects in your projects; for Computer, Console, Mobile Games; and easy to use.
“Color Correction Pro” compatible with Cinemachine.
Download demoscene | Forum thread
“Color Correction Pro” allows you to customize:
▪ Hue, saturation, lightness, brightness, contrast, gamma
▪ Sharpness, temperature, threshold
▪ Color balance
▪ RGB channels, in the form of curves
▪ Input and output levels
▪ Photo filter
▪ LUT filter
▪ Ramp filter
In the “LUTs” and “Ramps” directories, there are textures for the LUT and Ramp filters.
28 LUT textures and 20 Ramp textures.
LUT’s includes:
▪ Autumn, Winter, Spring, Summer
▪ Arctic, Ice, Tropical, Green Field
▪ Sunny Day, Sunrise, Sunset, Moon Night
▪ Cyber, Modern, Dream, Nostalgic, Serenity, Lemon, Swamp
▪ Post War, Red Zone, Sci Fi, Wild West
▪ Pencil, Grayscale, Black And White
▪ Old Photo, Retro
To use “Color Correction Pro”, drag and drop “ColorCorrectionPro.cs” script to a camera or click “Add Component” -> “Image Effects” -> “Color Adjustments” -> “Color Correction Pro”.