Not entirely tested. Contact me on the RoR2 modding discord or my server @A5TR0spud.
Github repo: https://github.com/A5TR0spud/Megalomania/tree/master
My Discord: https://discord.gg/StBXkB86aT
By default:
Config options include Irradiant Pearl-like stat boosts, bomb generation frequency, bomb damage, how the transformation should happen, when, what items and rarities to prioritize, skills to replace, what skills to replace with.
Prioritized items and rarities are not guaranteed to be chosen, instead they are weighted higher.