Ow, I love it too. Esp on my laptops - with a touch pad, double clicking sucks.
The reason it is default was due to usability studies all saying single click is far easier for new users... Which is surely true, even after years and years behind both windows and Mac systems, my dad double-clicks menu items and forgets to double-click items in the file manager.
I'm surprised to this day that GNOME didn't pick up on this. The way it is solved in KDE is quite elegant imho - the selection marker is quite big with the large icons that are default.
Posted Aug 16, 2012 20:00 UTC (Thu) by pboddie (subscriber, #50784)
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There's another thing I discovered with touchpads: the tap-to-click, which I turned off wherever I could in order to avoid confusion about sudden, unanticipated click events. Once again, this had to be done in every desktop environment I evaluated in a range of different dialogues. Fortunately, the GNOME developers hadn't decided that tap-to-click was purely beneficial and not to be removed from the user experience, so for this I give them credit.
As far as selection markers are concerned, they should really appear as a pop-up that is offset (horizontally, most likely) from the icon/name combination in something like Dolphin, so as to avoid trespassing on the icon in a potentially non-obvious fashion for people who have to squint to see such things or who don't have normal colour vision.