Recently I got the idea I wanted to convert the changelings of Eberron into Pathfinder but change them just enough that it would not be just a straight port and make them something somewhat new. And if this is in the wrong place I greatly apologize.
Masquerader: Albino humanoids with the traits of humans and doppelgangers they are a hidden race for the most part and get by pretending to be other people.
Humanoid (0 RP)
Shapechanger subtype
• Humanoids breathe, eat, and sleep.
Medium (0 RP): Medium races have no bonuses or penalties due to their size. A Medium creature has a space of 5 feet by 5 feet and a reach of 5 feet.
Normal Speed (0 RP): The race has a base speed of 30 feet.
Specialized (1 RP): Pick either mental or physical ability scores. Members of this race gain a +2 bonus to two ability scores of the chosen type, and a –2 penalty to one ability score of the other type. +2 Int, +2 Cha -2 Str
Integrated (1 RP): Prerequisites: None; Benefit: Members of this race gain a +1 bonus on Bluff, Disguise, and Knowledge (local) checks.
Urbanite (1 RP): Prerequisites: None; Benefit: Members of this race gain a +2 racial bonus on Diplomacy checks made to gather information and Sense Motive checks made to get a hunch about a social situation.
Change Shape, Greater (6 RP): Prerequisite: Aberration, dragon, fey, humanoid, or monstrous humanoid type; Benefit: Members of this race gain the following supernatural ability: a member of this race can assume the appearance of a Small or Medium humanoid as the alter self spell, save that it does not adjust its ability scores.
Low-Light Vision (1 RP): Prerequisites: None; Benefit: Members of this race can see twice as far as a race with normal vision in conditions of dim light.
FWIW, I took a somewhat similar approach with the skindancers in Wayfinder #10. I scaled the Change Shape back for power reasons and because I was a fan of the slow, painful/uncomfortable, Rick Baker-style transformations in American Werewolf in London and the Howling.
I may have to look at that but in some ways this is actually scaled back some for Pathfinder. Changelings were supposed to be something like half-dopplegangers and greater change shape is the key focal point on that. But I see your point.