Upgrade and custom theme plugins

Administrators
1

This is not mentioned in the upgrade docs explicitly:

During the preparation for upgrading I found that our custom themes plugin did not build anymore.
This is due to the change to dart-sass.

By looking at the changes to the cern themes, I found the following changed fixed that:

Change all

@import 'base/....';

to

@use 'base/....' as *;
2

Yes, you’re right. This is related to the move from the obsolete libsass to [dart-]sass.

PS: You may want to fix the quotes in your example in case someone else with the same problem finds your thread.

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