"Red Line Tools" allows you to add various elements to the screen, such as: lines, grid, layout, and various image overlays on top of all windows.

Tools:
+ Red Lines
+ Grid
+ Layout
+ Image Overlays
+ Zoom Tool
+ Measure Tool
+ Color Meter Tool


Abilities:
+ All tools have increased accuracy for working with retina screens.
+ Flexible tool tweaks
+ Always on hand in the status bar and hotkeys
+ On top of all windows possibility
+ Create your personalized tools using image overlays

And much more in the next versions.

As always, if there are any questions or requests for this application, please send me an email [email protected]