Aaaah... I have something to add! hehe I just noticed.
I have a laptop-screen and not a ordinary monitor for viewing.
This makes the "different" icon-color-brightness slightly the same (the yellow becoming more like white), when seen at bottom most position on my laptop-display.
So when i view a whole column of icons over the whole page, the icons sometimes seem to be alike althouhg they are not. And I have to move my head up and down/close in to determin if I am dealing with an updated icon, when viewing the content on the sceen.
I hope this helps.
I do not support Bush! Nor Saddam! Long live UN!