I think a higher tier spray tinter recipe that has a spray can efficiency boost would be pretty great. This could just be one more level of crafting material, say a Gem spray tinter, or it could be an increasing series of tinters; titanium, gem, and then exo. Each would have more of an increase in efficiency. The spray would act kind of like heat. Highest level would be something like 50% more. So at peak, you’d be able to tint 3 blocks for every 2 cans of spray. Maybe higher, maybe like 75% more which means you’d be able to do 7 blocks with 4 cans.
The ratios could be played with a bit, but I LIKE how hard it is to make pigments because it makes it a more niche and expensive type product, but I would also like just a tiny amount of efficiency increase to help me get over the hump!