You are probably here because you are facing an issue with your media cutting off, something like this:

While the original media was:

This is because the Aspect ratio was converted to square and the original media is in the landscape format.

To adjust the whole picture in the frame: 

Click on the media, the first option will be Media-Size. Select the option Fit in frame.

After fitting in the frame, the background is still blurred. You could set the background colour as:

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