Not a dumb question at all and proven since there’s more than one of ya. These are why i use silhouettes:
1) Being Lazy AF
The silhouette is my main layer that I mask colors on top of. But if I don’t have that little red line in place…
My picture looks like this:
Each color (red, blue, dark blue, etc) has its own layer. So if I have the skin as the uppermost layer and am coloring Craig’s hair in a layer below it, I don’t have to worry about staying inside the lines and messing his skin color up. So there’s a little trick on how to be lazy and smack colors down fast. B’)
2) Character Design
One thing I’ve learned from character designing is that it’s important to have a distinguishable silhouette - if you take a cartoon and you can still recognize who’s who in the silhouette, youre on your way to a good design!
These two have pretty similar body types but they still can be told apart from each other with identifiers. Craig’s got slimmer legs, both have different shoes, Tweek’s hair, Craig’s hat, etc.
Even a style as simple as south park has this:
Even though they show no features or colors, you still know that it’s Stan, Kyle, Cartman and Kenny from the shapes used in their silhouettes.
so when making their outfits and stuff for the au, I want them to all be distinguishable from each other so the silhouettes are sort of a self-check to myself that even in a dark room, I’ll be able to know whether I’m looking at Craig or Stan or etc. I’ll probably do a silhouette lineup after I finish the whole survivor group to further illustrate this (and just for funsies for myself)