# ui The user interfaces here are built with [raylib](https://www.raylib.com/). Quick start: * set `BIG=1` to run the comma 3X UI (comma four UI runs by default) * set `SHOW_FPS=1` to show the FPS * set `STRICT_MODE=1` to kill the app if it drops too much below 60fps * set `SCALE=1.5` to scale the entire UI by 1.5x * set `BURN_IN=1` to get a burn-in heatmap version of the UI * set `GRID=50` to show a 50-pixel alignment grid overlay * set `MAGIC_DEBUG=1` to show every dropped frames (only on device) * set `RECORD=1` to record the screen, output defaults to `output.mp4` but can be set with `RECORD_OUTPUT` * https://www.raylib.com/cheatsheet/cheatsheet.html * https://electronstudio.github.io/raylib-python-cffi/README.html#quickstart Style guide: * All graphical elements should subclass [`Widget`](/system/ui/widgets/__init__.py). * Prefer a stateful widget over a function for easy migration from QT * All internal class variables and functions should be prefixed with `_`