It highlights links and buttons when the cursor moves over them like a bubble. It also changes to an I-beam when hovering over text. You are able to customize the color, the border color and many more features for free! There is an invert feature which inverts the colors behind the cursor. Please note that this extension does not work in some websites, like Google Maps, but users will be able to turn the extension off through the popup. Also it might adjust formating on webpages but this is usually avoided.