What are you wearing for trail runners now?
I was looking at Nike ACG stuff recently, but the colourways in AU are black (clodhopper!), neon blue, white with khaki, camo, or an odd light brown. And on the side it spells out "All Conditions Gear" like you're an idiot who can't remember what your shoes are for.
Trail running is highly dependent on the type of trails around you. I'm in the bay area and almost everything here is dry, dusty and hard. You can generally get by with structured road running shoes if you want to, and don't need much support beyond that. I would not recommend the same thing to east coast trail runners, or most northern Europeans.