The presence of Splash does not preclude the presence of Frame.
I agree the offset face marking is typical of Splash, as is the four white legs (Frame loses the white legs first when going to minimal)
I would definitely test her, though.
Although not proven yet, Tobiano is strongly believed to negate white face markings.
A horse can have ALL patterns, BTW, so this horse could have Tobi+Splash+Frame+ Sabino!!!!