@calebeby The background color is set in style.css. Is there a way I can modify that to change to black if a user requests it?

Can we instead use a media query instead? https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme

I think a combination of media query + css variables should make this work

Do you know if there's a way to change that value within the app? It seems like it's pulling only from the device or browser.

No that just uses the system setting (we should use that as the default). You can add a toggle with JS and custom properties that overrides the default.

Here is a very in-depth article that outlines several good options: https://css-tricks.com/a-complete-guide-to-dark-mode-on-the-web/