I do a lot of reading on my laptop and tablet. The ability to change the background-color and font-color on demand keeps my eyes and/or head from aching. If you have late night readers on your sites, they might thank you for implementing something like this. It's exceptionally easy to do with Webflow.
I made the CSS sun and moon for fun. In real life, I would use a much smaller toggle that follows the reader the down the page.
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