Doesn't work on the MS Store version

[JOY]

Doesn't work on the MS Store version, the OS doesn't allow to override the js file.

[candelinJC]

I'm also using the osx app store slack app. I followed the steps and I see the them apply to the sidebar and the enter chat section at the bottom, but the large main window that shows the chat history remains white, unchanged from stock style.

[localhostage]

The file location is different for the MS Store version. I was able to get things working at this path: C:\Program Files (x86)\Slack\resources\app.asar.unpacked\src\static

[JOY]

The MS Store version will not be installed in C:\Program Files as I know.
It's actually here in my case:
C:\Users\MyUser\AppData\Local\slack\app-3.3.8\resources\app.asar.unpacked\src\static
However, when Slack update the app-3.3.8 part will change. So I have to copy again.