Not reading the website linked to in the repository's 'website' field is a recurring failure of users that assume: http://rpg-paper-maker.com/

Sorry, couldn't resist. Have a good day.

Since their website appears to be down for now check out their steam page: https://store.steampowered.com/app/1066860/RPG_Paper_Maker/

Especially for a project that’s almost entirely visual!