Configurable Theme Libraries

This module provides a neat solution to define configurable theme libraries in
your THEME.info.yml file. These libraries can be enabled or disabled for a
given theme on the fly. This makes it possible to control active libraries via in the interface. An example usage could be the implementation of two different global styling libraries to change the appearance of the theme.

To make it work for your theme there are a few steps you should take:

• Define at least one configurable library in your THEME.info.yml. Defining
  them is done by using the configurable-libraries key. This module scans
  the active theme for these to register them.
• Configure which libraries will be used at /admin/appearance/settings/YOUR_THEME

Each configurable library can contain their own library definitions as normally
used in the THEME.info.yml. This consists of:

• libraries
• libraries-extend
• libraries-override

An example definition looks like:

configurable-libraries:
  global-styling-green:
    name: Global Styling (Green)
    libraries:
      - my_theme/global-styling-green
    libraries-override:
      - my_theme/global-styling: false
  global-styling-blue:
    name: Global Styling (Blue)
    description: This makes the site blue.
    libraries:
      - my_theme/global-styling-blue
    libraries-override:
      - my_theme/global-styling: false

Installation

Install this module as any other Drupal module, see the documentation on
Drupal.org.