I added a 3-way Theme toggle enhancing the existing 2-way toggle, allowing switching between system, light, and dark modes, which I'm quite happy about. This was implemented using GitHub Copilot with Claude 3.5s Sonnet.
Most of the time was spent finding a suitable icon (tried searching for light dark and sun moon with a single path that would work with my system. I found one on Iconify but had to modify it. Something to note, while I attempted to use LLMs for the modification, it wasn't successful, so I used SVG Path Editor instead. As shown in the image below, you can now switch between three theme modes rather than just two.
You can look at the GitHub gist below to see the conversation with GitHub Copilot.
Read in the embed: