UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10895.40.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.73 Safari/537.36
Platform: 10895.40.0 (Official Build) beta-channel edgar

Steps to reproduce the problem:
1. Updated to previous build tab strip was black after update
2. Power-cycled Chromebook, no change
3. Updated to current version 69.0.3497.73 (Official Build) beta (64-bit), no change Tab strip is still black.

What is the expected behavior?
The tab strip and all tabs are supposed to/ should be white.

What went wrong?
I don't know, the previous update seemed to take a long time (sorry I am unsure of the version number and do not wish to cause confusion by entering a random previous version, though it was the version I had right before the current build.) It is possible I missed an update that could have caused this problem; though I try to do the updates as soon as I see they are available.

Did this work before? N/A 

Chrome version: 69.0.3497.73  Channel: beta
OS Version: 10895.40.0
Flash Version: 30.0.0.154 /opt/google/chrome/pepper/libpepflashplayer.so

Is the Tab bar suppose to be black? I cannot see the page logos for some of the tabs I have open because the bar is black by default. It is however light gray when I have another window open over the internet tabs. It is very annoying and sometimes I do not remember which pages I have open between sessions.
I have tried closing all tabs, power-cycling my Chromebook, and making sure I have all current updates.
It is incredibly hard on my eyes, I have to keep the screen brightness on high just to have a vague idea of some of the pages I have open. I really like Beta, but if there is not a fix for this I feel like I need to move back to Stable for my eye health.