Here is a list of all related documentation pages:

Base-93 format
Potential beta testers
Binary Unicode Data Format
Case Study: Recording Application
Code Style
Dependencies for TTauri
TTauri Geometry System
Picke encoding format
RenderArchitecture
TTauri Template Language
Text handling.
GUI Themes
TTauri time handling.
Tracing
TT5 - TTauri 5-bit string tags.
TTauri Icon File Format