Thanks!

You make one separate texture file that contains these colors which define what appears on your skin, and you upload it to your workshop.

Hi, I can describe it briefly... so here's how it goes:

Anodized Multicolour and Airbrushed finishes:

Red colour in Paint-By-Number mask, marks the area where the pattern will be applied.
Green, Blue or Black colour exclude everything, in other words, it means the loading of default weapon's texture with default effects on those areas, marked by those colours.
Yellow colour loads the Green channel from the workshop colour settings.
Pink or White loads the Blue channel from the workshop colour settings.

Hydrographic finish:

Red and Black colours in Paint-By-Number mask are marking the area where the pattern will be applied.
Green and Yellow are loading the green channel from the workshop colour settings.
Blue, Pink and White are loading the blue channel.

Hi, how do you do custom paint-by-number masks? Can you help me with that?

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I wish you all the bestbe healthy and happyMay all your dreams come true

Followed, keep it up with the skins mate!