Details, Fiction and triton rogue
Strangely more than enough, I like to recommend the forest gnome in excess of the rock gnome. Forest gnomes obtain +1 Dexterity, which I might worth above the rock gnome's +one Structure bonus. Also, the rock gnome's Tinker ability Regrettably does many items the artificer currently gets to do as well as the ability (while flavorful) is Unfortunate