Currently, with dark theme only available colour scheme is grey shades, while light mode offers multiple colour schemes. With only greys, it can be hard to tell difference between shades.

It might be good idea to add (more) colour schemes to dark mode. Even just copying schemes from light mode would be a good start, although they might need a bit of tweaking to avoid heavy contrast with backgro

We are reliant primarily on the examples for testing at this point. It would be good to "stress" the allocator because I would be (pleasantly) surprised if it's bug-free.

• More extensive unit testing
• Integration test under tests/ that (for example) uses the max number of registers of a given kind and confirms the register allocator doesn't fall over
• More specifically, handling of "cast

src/asm/parser.y is currently very messy, lacking organization and comments. Bison documentation is clear: both /* ... */ and // are supported.

• Organize rules better, possibly with "section markers" (`// -