Download Lemon Powerpoint Background. Today’s freebie is a modern look background that will be perfect to make your slides unique and stand out. To make your presentation text float on the top of the background, pick colors that have high contrast so that it can be easily seen when shown. If it possible, look for ways to use a visual (diagram or photo), instead of text, to illustrate the point you are making. Enhance your slideshow so it looks impressive for your audience. Download this image, perfect for school, business, and home projects and builds stunning presentations. You can easily improve the design of your slides with just changing the background image.