How to add a background color to "Hide Details"

Support
1

By default, there’s no background color to “Hide Details”,
like this

no background color

How to add background color to “Hide Details”,
like this

with background color

My Discourse: self host, latest version 3.2.0.beta4-dev

2

There have been some recent changes to the Hide Details feature. I think if you update your site you should be able to get the background colour like we have here on meta:

Example Details

This text will be hidden