With shift tooltips on, when you hover over an item and then press shift, nothing happens until you move the mouse on to the details of the item(Moving around in the empty space does nothing) or leave the box then enter again while still holding shift. P.S: I'm using Windows 8.1 with Internet Explorer 11.
I think it's funny that when you put in a really high number in the custom upgrades, for example 9e99999999999999, it says it takes infinity resources and infinity percent. The custom upgrade comes up as Infinity instead of the number you put in.
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