To Change the background color of the slide, choose To Change the background color of the slide, choose Format / Background, Format / Background, which will bring up the following which will bring up the following

dialog box:dialog box:

Choose Fill Effects. This will bring up another dialog box:

Choose the color and / or style, then click OK. Now will have a background with the color you want.

To insert WordArt, choose To insert WordArt, choose Insert / Pictures / WordArt. Insert / Pictures / WordArt. It It will open a dialog box like this:will open a dialog box like this:

Now, click on one of the boxes, then click OK:

In this dialog box, type the text you want to appear with the special effect and click OK.

This is how it will appear on your slide.

To apply a different presentation design to the slide, go to To apply a different presentation design to the slide, go to Format / Apply DesignFormat / Apply Design::

Select the design you like and click Apply:

Now the slide will appear as the design you picked.