name: 'Theme test subtheme' type: theme description: 'Test theme which uses test_basetheme as the base theme.' version: VERSION core: 8.x base theme: test_basetheme libraries: - test_subtheme/global-styling stylesheets-remove: - '@theme_test/css/sub-remove.css' - '@test_basetheme/base-add.sub-remove.css' libraries-extend: classy/base: - test_subtheme/global-styling