thanks darkfenix!
yeah, I need to work on my game loop more. For your bullet points:
1. yes, 3 legs and 2 tails is 23
2. Regarding the colours: did they all seem the same to you? I didn't think at all about colourblindness! This is fascinating please let me know more! Regarding what and how many they are, I left the hint there to help, if you press it it says.
3. So for the example: 24/48 is the fraction. It can be written as: 2*12*1/2*12*2 = 1/2. So you can use the brush set to 2, then 12, or vice versa. Or with 6 then 4 etc. Just use 1 at the end when the fraction is simplified
(I know its not very helpful hehe)