Good question!
Are you asking in terms of configuring sprite sheets to be exported or defining sprite styles?
Configuration
You can resize sprites to be anything ranging from 1x1 to 128x128 pixels (don’t have to be square). All of the animations of a sprite sheet will have sprites that are the same dimensions. If you want specific dimensions for particular animations, I would recommend exporting those animations individually. You can do that on the configuration screen by…
- Unchecking all other animations in the “Sequencing” section
- setting your desired dimensions in the “Padding” section
Defining sprite styles
You can define sprite styles with individual frames/sprites ranging anywhere from 1x1 to 128x128 pixels as well. All animations of a particular sprite style will conform to these dimensions. I’m still finalizing some of the pages, but you can have a look at the API specification if you want to learn about how to make your own sprite styles. I’m in the process of producing tutorial videos about that as well.
Let me know if that answered your question :)