Board Thread:Support Requests - Getting Started/@comment-36009152-20190827235236/@comment-9605025-20190829004148

Under "Picture Tools", there should be a tool called "Remove Background". That is how I made it transparent. I changed the color of the mask by making the mask transparent and then placing a colored square behind it. PowerPoint allows you to control the layer order so you can choose which objects are seen on top. Then you can put them into a single group. Lastly, save the group as an image.