After installing the extensions, selecting text and pressing `Ctrl+Space` will display the answer above the selected text in the configured opacity. To hide the answer, press `Ctrl+Space` again without selecting any text.
The opacity can be adjusted from 0 to 1, and is set to 0.1 per default. Adjust based on your screen's brightness and if you want to risk it being spotted.
Download the latest release from the [releases page](https://git.elia.network/elia/cas/releases) and open it with Firefox. It should prompt you to install the extension.