ThuleSubterra Backpack

Low-cost airlines have passengers measure their bags right at the boarding gate, has anyone tested the 30L to verify it does fit as a personal item?

Will a 15.6 laptop fit in this backpack?

What is the inside color of the black outside thule subterra 30l? i see some say orange and others say yellow/lime?

Any ideas how to mute (make less visible) the big thule logo in front of this bag? make it dark or remove. the bag is perfect without the big logo.