Overlay filter

- It's used like a screenshot tool, but instead of taking a screenshot it displays a box over the selected area. It's an intuitive and easy to use single click extension.

- Click it once to remove it, or hold 'ctrl' and click to remove all boxes.

- It uses the background color of the element it blocks, so with the right selection, integration is seamless.

- You can choose between fixed or absolute position (box moves with scroll or not) as well as colors in the settings pane.

- Everything runs locally and it doesn't connect to a server or collect data.

- Limitation: selection must start within body element