An SDL2-based 2D-game framework based on unsigned 4-bit integers written in Rust. An example binary can be found under src/bin.rs
15 of the 16 possible values of the u4 ints are set by a color space table given to the renderer. The 16th value is always full alpha.
You can build the documentation by running running cargo rustdoc
It is advisable to run the tests in the following manner: cargo test -- --test-threads 1 as the tests otherwise block the SDL environment for each other.