Yascu is a simple program with which you can take all types of screenshots: area, active window, clipboard, workspace, etc. Also, all of them are sent to a folder on the desktop, in your documents, or in the images area.
Once the screenshot is taken, it is possible to edit it painting the colour red in any area, thanks to a pencil utility that Yascu offers in its own interface. And in case you want to take timed screenshots, you can adjust the time that has to pass before the shot is taken.
It is also possible to reduce the opacity of Yascu to be able to see what`s beneath, or even send the screenshot to the clipboard with just one mouse click.