Unable to add scaled borders to scaled Images in Arbortext

Hi Team,

I tried adding a block border. It results in a border around the block, which is fine if the image is block-sized, however, if the image is scaled down, the border shows up on the entire block instead of the image. I understand that the 'block border' option will always do that. I wonder how we can achieve this without block border.

I tried looking online and couldn't find anything, either no one uses borders and hence no questions are being asked (unlikely) or it's so simple that no one needs to. 

Thanks for reading. 
Help me if you know what I can do to fix this.