Thumbnail size

In My older version NeroVision the preview thumbnails of pictures and movies that can be added to a slideshow or Movie is that small that I need to have a second screen present to be able some detail of the picture.
(Size of the thumbnail is about twice the size of the font in which the name of the item is displayed)
What is the size of these thumbnails in the newest version of NeroVision
The size of the thumbnails in this picture already is larger than what I experience
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