The info panel
The right panel is the detail view for whatever you have selected. It is where you read a file's properties, jump to where it lives, copy its prompt, manage its tags, and leave notes.
One image
Pick a single image and the panel fills in from the top: a large preview, buttons to open it in Explorer or jump to its folder, its dominant colors, the prompt it was made with, its tags, a notes field, and its properties: rating, dimensions, size, type, and date.
Several images
Select more than one and the panel sums them up instead: how many, their total size, the file types involved, and buttons to copy all their paths or trash them together.
Quick actions
An Edit button hands the image to your editor, and clicking the preview opens the full-screen view. Plugins can add their own buttons here too, like CivitAI's Details, when an image matches.