Thanks for your question, and thanks as well for your positive MLA review.
You can change the thumbnail image size in the Media/Assistant admin submenu table with an option setting:
- Navigate to the Settings/Media Library Assistant General tab.
- Scroll down to the “Media/Assistant Screen Options” section and find the “Table Defaults” subsection.
- Enter a number such as 256 or 300 in the “Icon Size” text box. These are larger than the default size of 150.
- Scroll to the bottom of the page and click “Save Changes” to record your new setting.
You can play around with the number to get a size you like. I am marking this topic resolved, but please update it if I have not understood the question or if you have problems or further questions regarding the above suggestions. Thanks for your interest in the plugin.