Photoshop's Info palette gives you a wealth of data on the current document's color space, as well as information on the x/y position of your mouse cursor within the active document window. In addition, when you're using one of Photoshop's drawing or measuring tools, the Info palette gives you up-to-date information on the size of the object you're creating. Photoshop works with black, white, shades of gray, and every color in between. By creating color markers you help identify the location of specific color points within an image, which is indispensable for performing color correction, and the Info palette displays color information about the marked color and on how the color has shifted.
Info palette.
IMPORTANT
The bottom of the Info palette now displays tips on how to use the current tool, and the current size of the working document (
Info palette.
Eyedropper tool on the toolbox.