3.10.0 - Room pictures shown on the TV

The room card holds pictures, added with its picture button or dropped onto the card
A click on a thumbnail shows the picture on the TV over the dimmed map, and a second click or Escape takes it down
The picture appears and leaves in patches of fog
Thumbnails reorder by drag, and × deletes one
Animated GIF, WebP and PNG files keep playing, and SVGs stay sharp at any size
Pictures travel with the room through copy and paste, and with the scene through a backup
A map dropped on the window imports nothing; maps come in through "+"
Multiattack swaps read in Russian as one attack that can be replaced