map icon

So creating a map icon for google Tour Builder is fairly easy in Google Drawings. It is a 64x64 pixel image.
The problem with the custom map icon and Google products is the extension. In Drive, photos, and even Google Sites the image does not end in a traditional extension but a special Googleized web address. So the images will not show correctly.
Blogger I think has a bit of the older system still at work. The image address in Blogger does end in the .png format making it possible to copy and paste the image address.