Customize the Checkerboard Background
When you open a document that contains transparency, or when you create a document and select the Transparent option for Background Content in the New document dialog box, Photoshop has to show something where there is transparency in the document. By default, it shows a checkerboard as a background.

So, just how do you customize the checkerboard display if you do not like the default display? It’s not too difficult when you know where to look. As always, a good place to start looking is in the Preferences dialog box. You can call the dialog box from either the Edit menu (Windows) or the Photoshop menu (Mac OS), or you can use the keyboard shortcut Ctrl+K (Windows), Ô+K
(Mac OS).

There are a couple of ways of changing the colors for the checkerboard. Either you can select a preset color from the Grid Colors pop-up menu, or you can click the color boxes and define a custom color. You can do this for either one of the squares that make up the grid by clicking the appropriate swatch.

The Transparency & Gamut screen of the Preferences dialog box. Here you can change the checkerboard display to a custom color; you can also hide the checkerboard altogether by selecting None from the Grid Size pop-up menu.

Customizing the checkerboard is neat, but at times you do not want to see a checkerboard at all; granted, those times may be rare, but they do come around occasionally. So, just how do you turn off the checkerboard display? In the Transparency & Gamut screen of the Preferences dialog box, select None from the Grid Size pop-up menu in the Transparency Settings section of the dialog box.Take note that when this option is selected, transparent areas display as white.