Everest MainMenuMode API

[midnight stirrup]

I was playing around with the menu interface (moved menu buttons to keybinds) and noticed that Everest doesn’t have an API for creating custom main menu modes besides vanilla and rows (https://github.com/EverestAPI/Everest/blob/ac22fcf68ea43748cd8ffdd9e0de3e3d1c6cc58e/Celeste.Mod.mm/Mod/Core/CoreModuleSettings.cs#L525
). That gave me the idea to make a pull request so people could create beautiful menus in any style they want! Does this idea have potential, and would anyone be interested in helping?

[gleaming narwhal]

Since this is about everest itself I think #modding_dev would be the right place for discussion