Selecting a Color in the Loupe

How do I select a color in the Loupe?

When the Loupe is over a color you want to capture, you can press the tool's Command-Option-Control-C hot key to copy the color to the clipboard and save it in the Loupe's palette. This hot key can be changed from xScope's preferences pane by going to xScope -> Preferences and selecting the Loupe's section.