Color scheme callback and update tool

[alec-c4]

Hi there!

I’d like to propose adding the ability to set callbacks for color theme changes. Let me explain what I mean. There are some tools like https://giscus.app that can easily be integrated into Astro apps. However, unfortunately, they don’t have an option to change theme based on current blog themes. There’s a discussion in GitHub issues giscus/giscus#1200, but if you can add something useful, it would be great!

Another thing I’d like to ask is if it’s possible to automate theme updates. I’ve been using Astro Paper for a while now, and I’ve done several manual upgrades. It would be nice to have a tool that can automate this process to keep Astro Paper up to date. :)

[alec-c4]

I suppose that code from this blog post may be useful https://thiagoalves.ai/adding-comments-to-jekyll-using-giscus/