Draw border around links

Whether to draw a border around links.

Change colors

Enables the color changing options.

Invert Colors

Inverts colors on the view, i.e. black objects will be shown white.

Change Paper Color

Changes the paper's color, i.e. the document's background.

Change Dark & Light Colors

Changes the dark and light color to your preference, that means black will not be rendered as black but as the selected dark color and white will not be rendered as white but as the selected light color.

Convert to Black & White

Converts the document to black and white. You can set the threshold and the contrast. Setting the threshold to a higher value by moving it to the right will result in lighter grays used.