UserAgent: Mozilla/5.0 (X11; CrOS x86_64 11021.56.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.76 Safari/537.36
Platform: 11021.56.0 (Official Build) beta-channel eve

Steps to reproduce the problem:
1. Install atom-editor (atom.io) on crostini
2. Connect Pixelbook to external monitor with lower resolution
3. Restart ChromeOS

What is the expected behavior?
Icon should be in the correct resolution on Pixelbooks monitor and on any external monitor

What went wrong?
When I connect an external monitor with a lower resoltion to my pixelbook, the icon of a linux app (in my case its atom-editor) displays in the external monitors resolution on my Pixelbooks monitor. This means that the icon is displayed properly on my external monitor, but on the pixelbook it is displayed in a lower resolution, which doesn't look nice. This bug doesn't affect the functionality of the app. I can't reproduce this issue with android or chrome apps.

Did this work before? Yes 

Chrome version: 70.0.3538.76  Channel: beta
OS Version: 11021.56.0
Flash Version: 31.0.0.122 

When I installed the linux app for the first time. The issue only occured after I restarted my pixelbook.