Hey Dobsey! Yeah so there are 6 colors total, the 3 Primary Colors Red/Yellow/Blue are in the world where you've touched the white fire. Then, in the opposite world when you've touched the black fire, there are the 3 Secondary Colors Green/Violet/Orange.
With lack of time during the game jam, I didn't get to make polished UI or dialogs for progression! But there is nothing more to do after you build out all the colors. :) I'll be uploading an iteration soon where it'll let people know their progress better.
Nothing to do in the house btw :) all the objects there just fill out as yellow/violet.
Thanks for trying this game out even though it's my rushed 3-day version! I'd appreciate any feedback you have so that when I finish developing it, peiple will enjoy.