v1.13.0

v1.13.0 (minor)

Changes since v1.12.0:

• Cover the theme choice and the error colour, and drop an untestable fallback (@Claude)
• Theme the editor with ktsu.ThemeProvider, and stop clipping tree labels (@Claude)

What's Changed

• Theme the editor with ktsu.ThemeProvider, and stop clipping tree labels by @matt-edmondson in #142

Full Changelog: v1.12.0...v1.13.0