SMGUI Modules

Backends

ui_glfw.h uses GLFW3 (this is the default)
ui_sdl.h uses SDL2/3
ui_x11.h uses X11

Font Drivers

ui_psf2.h uses PC-Screen-Font (same as Linux Console, this is the default)
ui_ssfn.h uses Scalable Screen Font

Custom Widgets

ui_textosk.h adds an on screen keyboard during input to the UI_TEXT fields
ui_file.h adds UI_FILE and UI_PATH file picker fields
ui_table.h adds UI_TABLE, the table and grid container