What does this GUI icon mean?
Solution 1:
That icon indicates what season it is. The current icon is Winter, indicated by what appears to be a holly: 
. Spring is a pink flower:
Summer is a sailboat: 
and Fall is a orange-yellow leaf: 
.
That icon indicates what season it is. The current icon is Winter, indicated by what appears to be a holly: . Spring is a pink flower:
Summer is a sailboat: and Fall is a orange-yellow leaf: .