evan
4e5796fd51
Apps describe nesting instead of coordinates: /lib/ui.lua borrows CSS block flow, the box model and auto sizing, and owns hit testing, press capture and the pressed repaint. The runtime gains require backed by the SD card, on_touch_down/on_touch_up, text metrics and rounded gradient fills, so the launcher becomes an ordinary Lua app and the firmware keeps only a fallback screen for an unreadable card.