By default, thumbnail images on a Scratchpad are resized and cropped to fit an 85x85 pixel frame.
This provides a clean and easy way to browse thumbnail gallery - but does have the drawback that some image content will be missing from the thumbnail.
If this is a problem for your Scratchpad you can enable the Full thumbnails option which will display a miniature version of the entire image without cropping.
To enable Full thumbnails:
- From the Admin menu go to Structure > Tools
- Go to section Images
- Turn the Full thumbnails on
- Click Save