The default project background color of WireframePro is white. However, the background color can be set before the project is created and it can be also changed anytime later from the page's grid settings.
Note: Background color is applied commonly for all pages in that project and it cannot be set individually per page.
1Open Page Settings from the editor sidebar.
2Click on 'Set Page Size and Transparent Background' and toggle on and off the Transparent Background option to set the page background as transparent.
3Click on the color palette component to choose a color for the background.
4To apply the changes, click on the 'Save' button.