^ this. This is pretty much the only thing I would add; when doing an "add to home screen" and going to full screen, it still shows the phone and browser border

^ this. This is pretty much the only thing I would add; when doing an "add to home screen" and going to full screen, it still shows the phone and browser borders, which aren't black. Adding a manifest.json, setting theme_color and background_color: https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/How_to/Customize_your_app_colors https://developer.mozilla.org/en-US/docs/Web/Progressive_web... would help a lot on mobile with the immersion effect Sit is aiming for.