① Open PowerPoint2007, create a new blank slide, click on the menu bar--Start--shape, and choose inside.
After selecting the ②, drag the mouse and draw a graphic in the slide.
The pattern of the ③ clouds has been painted, the same way to draw the pattern of lightning.
④ the pattern is blue, right click on the pattern, choose to format shape.
⑤ in the Fill option, click on the Color button, select the appropriate color, OK.
⑥ good color, adjust the position, let the pattern appear to coordinate.