SMART Notebook 10 for Mac Operating Systems
If you insert a graphics file on a page, you can create transparent areas within the graphic. This is useful for removing an image's background. You can make any color in a graphic transparent.
Press the object's menu arrow, and then select Picture Transparency
A dialog box appears.
Press any areas in the graphic that you want to make transparent.
NOTE: Pressing an area makes only that area transparent, even if the graphic includes that same color in other areas.
Press Set Transparency.