Thumbs
Note
The latest versions limit themselves to loading no more than 64MB of files from disk. This is to prevent out of memory errors that may have adverse affects on the stability/performance of the whole application.
By default it will display multiple images (if present) inside the same folder as the playling/selected file. The folder path can be configured via the right click menu.
Alternatively, you can put it Last.fm mode and it can download artist images. Automatic downloads are enabled by defaul but that can be turned off and you may trigger downoads manually.
There are many options for thumbnail size and alignment via the right click menu. Circular thumbnails can also be enabled.