@wildfire At first I thought making some sort of purchasable theme, but then I realized that my two first themes were free and people pirate & sell them as their work anyways. If I sell the files they will be soon in any link free to download. I think I will set a kickstarter style support system. If people is able to support the effort, theme will progress and if it goes live it will be a collective achievement.
Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first