Quick Tip: Microsoft PowerPoint: Transparent Fill
Filling a text box with a solid color is a convenient way of making the text on your slide stand out. It’s almost necessary in a presentation where you have a background with a lot of contrasting colors, but it has the trade off of covering up part of your image. In this quick tip, I’ll show you how to adjust the transparency on your text box fill so that your text is readable and stands out, but you can still see the background on your slide.
See more quick tips here: Quick Tips for Microsoft Office Applications.