Resizing image in Superchat entry

I would like to be able to resize an image that I attach in a Superchat. 

I have noted that when I attach an image in a superchat - especially if the chat is in a full width container, it blows up to a full width and takes a LOT of space in a chat, requiring a lot of scrolling from others. 

I believe we are planning changes and new possibilities for image sizes in the new UI project.