Hello, cineboxandrew, I've encountered a few issues that might clarify more Conformal Decals. With that, I have a few suggestions.
1: Usually, parts such as ProceduralParts and ProceduralWings have only so many recolorable options offered by Textures Unlimited, and Procedural Part's custom textures.
Conformal Decals, doesn't have a sort of "Paint" for variable texture. Note the slight color variations on the V-2. I had to exit the game just to place a pure black png flag on my KSP folder. It took a few minutes.
My suggestion is: Blank Conformal Decals. Blank Conformal Decals that allow color-changing, for painting purposes, as well as more advanced scaling (left-right, up and down adjustably). You can use the Textures Unlimited "Open Recoloring GUI" for painting? That's my suggestion.
