Are cupcakes not animals?

I use Firefox and I have Dark mode. I think it is a setting in the browser, but I cannot remember what I did as I did it years ago. Edit: and I deleted my comment instead of editing it. I do not use any apps as I only use my PC for any social media.

I use Firefox and I have Dark mode. I think it is a setting in the browser, but I cannot remember what I did as I did it many years ago. Edit: A do not use any apps as I only use my PC.