Image colors

Operation	Syntax
Basic color adjustment	`-/brightness/:value/` `-/exposure/:value/` `-/gamma/:value/` `-/contrast/:value/` `-/saturation/:value/` `-/vibrance/:value/` `-/warmth/:value/`
Enhance	`-/enhance/` `-/enhance/:strength/`
Grayscale	`-/grayscale/`
Inverting	`-/invert/`
Conversion to sRGB	`-/srgb/fast/` `-/srgb/icc/` `-/srgb/keep_profile/`
ICC profile size threshold	`-/max_icc_size/0/` `-/max_icc_size/:number/`
Photo filters	`-/filter/:name/` `-/filter/:name/:amount/`