This should gradually replace all the direct rendering of game texts
throughout the code. The interface is made to closly mirror that of the
art fonts as that is what will eventually be used for rendering Unicode
fonts both in the menus and ingame.
fixup! ✨ Generic game text render function
Uses integer math only: This speeds up the rendering and eliminates some
zoom artifacts.
Improves player indicator look -- it's now symmetric and more legible.
