Keyboard
On the whole, interaction with this programme is possible using only the keyboard. As with any standard Windows control panel or dialogue box, you can use the Tab and the Shift and Tab keys to select the different items in a window. The Space key performs an action on the selected item. 

Colours
If you find it difficult to read the text in the boxes because of the colours used you can set both text and backgrounds to those which are defined on the Windows Control Panel by selecting Use Windows colours below.

Screen reader users
If you use screen reader software you should make sure that the check box labelled Include support for screen reader users is checked. This ensures that all items of text can be reached using the Tab key.