Color Editor - Color Picker
In the top-left corner of the color editing area is an "eye-dropper". You can use it to select any color visible on the screen (even those in other windows). Drag the eye-dropper across the screen; the color editor updates as you move over different colors. Release the mouse button when over the color you want to select. (This also changes the color of any objects that use the color shown in the Color Editor.)