Here you can change the theme Thumbnails, slideshow, paging, sorting and many more..
Navigate to Manage -> Advanced
Width: Sets the width of thumbnail
Height: Sets the height of thumbnail
Resize: Specifies how the thumbnails should be resized
- Constrain Proportions: Creates thumbnails maintaining their original aspect ratio. Thumbnails width/height may not match specified width/height
- Constrain Proportions- Pad Image: Creates exact width and height thumbnails maintaining original aspect ratio; adds padding using the padding color.
- Crop Image: Creates exact width and height thumbnails by cropping the image for best fit.
Watermark:(Default: Unchecked)
If enabled, applies watermark to thumbnails
Note: Does not apply to Internet URL