Trait: Mana vision

[Nida Westers]

Mana vision reads:
Dim light cast by Mana now counts as Bright light of the same radius, with half as much as Dim light afterwards (20 dim becomes 20 bright, 20 dim). You also gain the ability to see Mana within objects and through walls up to 30 ft from you. This ability extends to any magical light that would give only dim lighting. This effect stacks with low-light vision.

Does that mean any magic item can be seen behind a wall?
What about magic items made magically invisible?

[Viladin]

Mana vision reads:
Dim light cast by Mana now counts as Bright light of the same radius, with half as much as Dim light afterwards (20 dim becomes 20 bright, 20 dim). You also gain the ability to see Mana within objects and through walls up to 30 ft from you. This ability extends to any magical light that would give only dim lighting. This effect stacks with low-light vision.

Does that mean any magic item can be seen behind a wall?
What about magic items made magically invisible?

Works like Detect Magic at a shorter range.