I created a dependency between two tasks. I am sort of confused by the colouring of the symbols:
The item blocking is shown with a red sign
The item being blocked with a yellow one.
Now intuitively I would do it the other way round:
Red means you cannot go there. And that applies to the waiting task! I cannot go there before doing the other one. So to my mind the blocked item should be shown as red and the item blocking as yellow (I would rather prefer a green light). First item: Go do it (green), second you can't go there yet (red). And of course it would be perfect if "red" would change to "green" (go for it) as soon as the blocking item is marked as complete.