New features
* Add `mva` argument to `flexitext()` which controls the vertical alignment of individual texts within the outer text box (5da272172874fc89e54c4bf112a237dadb37062a).
Maintenance and fixes
* Improve backgroundcolor behavior. The backgroundcolor of one piece of text does not overlap other pieces of text (32787dfe0e60c57154f99ffe09011c5e7fd6367a).
* Add `pyproject.toml` (9).
* Numbers like X. are interpreted as X.0 floats (e.g. `1.`). Flexitext attempted to parse them as two numbers, resulting in an error (9).
* Add `Changelog.md` (9).
* Improved test coverage (9).