Pixel Library handles the common bits behind my other mods: menus, fonts, drawing, floating panels, input and saved settings.
If another one of my mod asks for it, drop it into the same mods folder. Shared appearance options live under Options → Custom Interface → Shared Appearance, so supported mods can use the same fonts and preferences.
It's a supporting library rather than a content mod. The individual Pixel mods provide the gameplay and screens.
Pixel Library Team
