UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36

Steps to reproduce the problem:
See the two screenshot.
The first is from the "Styles" tab, the second is the "Computed" tab, both from a same <ul> node.

What is the expected behavior?
The -webkit-padding-start property should be displayed in the Computed tab. It should have a triangle next to it which, when clicked, would unfold and display the source of the value for the property which is "user agent stylesheet".

What went wrong?
the -webkit-padding-start property is not displayed in the Computed tab at all, making it impossible to figure out where the left padding comes from (it is already painfully difficult to figure out when padddings and margins are dictated by -webkit-margin-before and the like, because no indication is given that this is what determines the computed value of margin or padding, but that's another issue)

Did this work before? N/A 

Chrome version: 50.0.2661.86  Channel: stable
OS Version: 
Flash Version: Shockwave Flash 21.0 r0