Screen ruler with simple color picker and screenshot tool. Measures the selected area. Has the magnifier for precise selection.
Overlaps the screen with a transparent window for drawing. The taskbar does not overlap.
Selecting an area with Ctrl key leaves the selection when the mouse button is released. This used for area screenshot.
You can draw on the screen before make screenshot. Use mouse with Shift key. Tools in the screen context menu.
There is also mode for moving capture area. (The mouse wheel moves the area by 1 pixel. Shift+ - horizontally.)
Ctrl-Space, Mouse middle button - Capture current color
Ctrl-C - Capture current color and copy to clipboard
Ctrl-S - Copy screenshot to clipboard
Ctrl-Z - Undo drawn object