Unfamiliar Form icons in VB6 project
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I'm a C# programmer and my knowledge about VB is practically zero. Ironically, at my work currently i'm working on a project which is based on a legacy VB6 version. And I find a lot of stuff unfamiliar to me, like the two following Form icons.     
            ![enter image description here][1] and ![enter image description here][2]


  [1]: http://i.stack.imgur.com/luKFO.png
  [2]: http://i.stack.imgur.com/OF6D5.png  

This second icon looks kinda blurry, like hidden files or folders in Windows Explorer. Can anyone tell the difference between these two? What do they imply about the Form in question?