I didn't exactly understand your issue. Have you been using osuskinner?
Well either way, if you've messed up your combo colours you can easily write the lines to add them back yourself, you just need to find the header that says [Colours] and under it write "Combo1:" followed by some RGB colour values (should look like this in the end: Combo1: 159, 255, 5), and if you're not sure what values to use, you can search "colour picker" on Google and pick the colours you want with that.
Also you can add up to 8 of them by repeating the process and changing the number after "Combo".