In transitioning from SOLIDWORKS 2015 to 2016 Beta I noticed that the new "File Properties" button looks very similar to the previous icon for the System Options button. I could foresee this causing some confusion. My suggestion would be to adjust the icon so it doesn't look so similar to the button used in the previous UI for a different function. I understand the System Options icon being changed to a gear. That makes a lot of sense since a lot of other applications I already use have a gear icon to indicate system options. I also think the File Properties icon makes sense. However, given that it looks similar to the previous system options icon, I think some adjustment might be in order.