My items are still coming up in square thumbnails. What do I do to make the files come up fullsize or much larger as though an original photograph? I am using the Roy Theme.
The size option applies to the file shortcode, but not to the items shortcode, so the effect you are looking for would require some theme rewriting beyond what the shortcodes are set up to do.
Probably a bit out of my league…thank you for your answer!
Can you recommend a plug in I could use to insert into a simple page that I could make a slider with all my items in larger size?
If a slider/carousel kind of thing is the goal, you could use the ShortcodeCarousel plugin. It still uses the square thumbnail, but if you edit this line in views/public/carousel.php it might get you closer.
Is this a good approach for large image viewing? Like 15Mb images, with scrolling/zooming? I’m brand-spankin’ new to Omeka, and it looks like these plugins aren’t available via Omeka.net, which is all I’ve played with (barely).
Side note related to the original question: the thumbnail used in the item shortcode, and most other areas of the public theme, can be changed by an admin user in Appearance Settings if you’re using Omeka 2.5. If you’re mostly interested in using the shape-preserving thumbnails instead of squares, this could work for you.