Improve your Google Docs experience. Whether you prefer the Code Blocks add-on or the built-in code block option, you can now easily highlight code, so it stands out from the rest of your document ...

How to add solid color as background in Google Docs. Click the File tab, then click Page Setup from the menu. A Page Setup dialog box will open. Click the Page Color button and select a color.

Choose one of the provided options, add a custom color, or use the color picker tool. Click OK. This will change the white pages of your entire Google Docs document into the color you selected.