- Update `del/book.pdf`. Chapters 1-3 95% transcribed.
- Update main text TeXmacs files (`src/*.tm`).
- Add images for Chapter 3 at `img/`.
- Export main text to PDF at `del/book.pdf`.
- Add temporary figure files until PSTricks source code obtained for rerender.
  - Path: `img/temp/`
- Update `LICENSE` to address use of `.license` files for content not
  covered by main text or original text license (e.g. Wikimedia
  Commons photographs).
- Update `notes/baltakatei`
  - Note TeXmacs bugs in `ref/notes/baltakatei/bugs.org`.
  - New: Unable to export a selection as SVG.
  - Add unicode cheatsheet.
  - Add glossary and index test files.
  - Add SVG object palette.
- Add SVG object pallette in `ref/notes/baltakatei/`.
- Move original text PDF to new dir in `ref`.
  - (`ref/original-textbook-v10/`)
- Add rough TeXmacs import of source `.tex` files to `src-legacy`.
- Add source image from Wikimedia Commons.
  - Path: `ref/wikimedia_commons/
- Update `TODO`
  - New: Adopt original section labels.
  - New: Convert text in figures to Linux Libertine
    - (get PSTricks source code for figures).
  - Done: Create custome style package.