Define the ruler transparency from 50% - 100%.
Set the position of the control elements in the guidelines (left/right and top/bottom respectively), and the guideline color.
Set the color of the simulated screen.
You can fade the GuideLiner elements in and out with a
defineable key combination (hot key). Then it doesn't matter if other
applications are in front.
The hot key will only be checked if this switch is set. In order
to define your desired key combination, click on the field below and
press your desired key combination.