1, we first start the PowerPoint2013 on this machine, create a new blank slide, click the menu bar-design-variant-background style, choose a style you like.
2, after the choice of style, repeat step 1, click the settings below the background formatting options.
3, right pop-up settings background format pane, check the pure color fill, click the Color button, select Color.
4, then check the picture or texture fill, click on the File button select the picture on the machine inserted.
5, so the beginning of the pure color fill for the picture fill, so that the third step does not make sense? Continue to click the Recolor button and choose light Blue.
6, this way, the picture and the solid color mixed, slightly diluted color, the effect is shown below.