Vibrant Paint

Formerly Oil-Based Paint by PrestonLeeCole
( https://mods.factorio.com/mod/Oil_Based_Paint )

Improves paint colors! Increases darkest possible black, and brightest possible color saturation on all entities that can be painted, including:

The Engineer
Car
Tank
Train station
Locomotive
Cargo Wagon
Fluid Wagon - Requires Fluid Wagon Color Mask!
Spidertron

Gun Turret
Flame Turret
Laser Turret
Tesla Turret
Railgun Turret
Rocket Turret

(NOTE: by default, turret heads are not repainted, as there's an issue with the railgun being repainted multiple times. I've included a startup option to repaint turrets anyway, if you don't care about the railgun issue.)

The color palette is your oyster now! But some colors may appear TOO SATURATED! Like 255 of a single color.

Vibrant Paint has negligible effect on performance, and does not affect loading times!
Vibrant Paint is great for color-coding Trains based on contents!
*(Probably) Compatible with FactorioHD!