Having looked at outlines, It was a nice flavour to elemental with a cartoonish way of looking, but I have an easier time notice some of the better graphics without outlines... Also WHY do having outlines enabled make all shadows darker? (Mostly tree shadows)...
In general, if I had to choose, I would have to choose the one that is best for performance, its not that big and issue since I like the graphics
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I think this is without, thats why i go vote without.
Sincerely
~ Kongdej