Logo Panel Size

Hi Keith! The link that Gerry shared above explains that:

For best results, use an image that is a maximum of 200 pixels wide and 220 pixels high. If your image doesn't fit within those dimensions, Storyline will scale it to fit.

Not knowing what your image 'looks' like makes it hard to determine if the scaling will allow it to look okay.  Due to normal company marketing restrictions, you will probably have to make that determination.