ScreenRuler is an OS X application that was designed to assist with reading on the Mac.
ScreenRuler provides you with a strip or ruler across the screen, which can have the contrast changed and have the background greyed, colored or dimmed out.
With ScreenRuler, you will be able to highlight or underline a part of the screen, depending on the users preference. It also has support for dual monitor and full screen overlay functions.
NOTE: To buy ScreenRuler via the App Store, an Apple account is required.
Here are some key features of "ScreenRuler":
· Ruler - This is the default setting. It provides a reading ruler across the current screen and will shade out above and below the ruler for easier viewing.
· Underline - Provides a line across the current screen.
· Overlay - Provides a full screen color overlay.
· Color - Click on the colored box to change the color of the ruler.
· Shading Level - Move the slider to change the transparency level of the ruler.
· Size - Move the slider to change the height of the ruler.
Outside Ruler (background):
· Color - Click on the colored box to change the color of the background/outside of the ruler.
· Shading Level - Move the slider to change the transparency level of the area outside of the ruler.
· Shading - Check the 'shade above ruler' and 'shade below ruler' boxes to show the corresponding shading above/below the ruler.