Picture in Picture
When you’re watching a video, you can pop the video out from the webpage into a separate window. To do this, look in the URL box for the Audio icon. Then click and hold. A pop-up menu will appear, and one of the options is Enter Picture in Picture.To exit Picture in Picture, you can click on the close windows icon (the X button) in the upper left corner of the video pop-up window. Or you can click and hold on the Audio icon in the URL box and select Exit Picture in Picture.
The color is controlled by the general computer settings --not in Safari;
Tabs are not very visible, Firefox is better.