[Bug]: Closing of curly brackets gets ignored when trying to create costum theme

[yugo2911]

Preflight checklist

• I have searched the issue tracker for a bug report that matches the one I want to file, without success.
• I have searched the frequently asked questions for a solution that fixes this problem, without success.
• I have checked that I'm using the latest stable version of the app.

What app version are you using?

v5.0.5

What operating system version are you using?

Windows

Expected Behavior

Being able to open and close curly brackets when creating costum theme.

Actual Behavior

Closing of curly brackets gets ignored.

Screenshots

[ThaUnknown]

custom CSS intentionally only supports variables

[yugo2911]

It would be nice if users could customize the interface to their liking

[ThaUnknown]

yes, thats what the variables are for

if you think some element is missing variables you can create a PR to fix it

[ThaUnknown]

made it more explicit that this only supports variables
963db90