Fix type error (CatTrap uses Doubles, Typograffiti Floats).

Syntax error fix.

Register new dependencies for text rendering.

Fix more import errors.

Fix import issues.

Prepare atlases for text rendering!

Fix input of system parameters to layout.

Import Font' to pass in system font.

Draft additional layout inputs.

Typesystem/import fixes.

Keep the SDL window open!

Trial use of SDL2 rendering.

Draft CatTrap integration (layout code).

Fix CatTrap integration.

Draft integration of CatTrap.

Add a useragent stylesheet (& README).

Compute styletree.

First!