There are 2 repositories under kanboard-theme topic.
Kanboard - Customizer adds GUI for logo, favicon and themes
A task-first and high-quality theme for Kanboard. It's also aimed at better mobile experiences, common plugin compatibilities, and customization friendly.
Yet another theme for Kanboard. Strongly inspired by the style of Wekan.
Modern And Simple CSS Theme For Kanboard
"One Experience" is a theme based on FreeScout's UI.
A simple plugin for Kanboard that adds a button to switch between dark and light modes.
🎨 A modern CSS theme for Kanboard !
This is a dark transparent material theme, with dynamically reloading non-moveable background image. It is intended for use with the Customizer plugin for Kanboard.