The 2.0.016 version of Scriboard for Mac was available as a free download on our website. The program lies within Theming Tools, more precisely Icons & cursors. The actual developer of this software for Mac is org.macmax.
From the developer:
Scriboard is an application that allows you to draw over your Desktop: over the Dock, windows, the menu bar, floating windows...
It is a useful tool when doing video-projection to quickly highlight some of the projected elements.
Scriboard has four markers with a customizable color each. You can change on the fly the opacity and the thickness of each marker with keyboard shortcuts.
You may want to check out more Mac applications, such as Desktop Wrap, LeopardDocks or Alert Expansion X, which might be related to Scriboard.