I’m trying to use the Salesforce internal list of icon images in a Skuid formula. Is this possible and if so, what is the syntax?

Example formulas:

/img/msg_icons/confirm16.png 

/img/msg_icons/warning16.png  

I would prefer to do this in a ui Only formula field, but I could do it as an image if that is my only option. However, when I tried that, it looks correct in the design view but does not hold the size setting when I preview it. No matter what I set the size to, it does not preview correctly.