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What happens when you create a sub theme in Drupal?
If a sub-theme does not supply its own block configurations, Drupal will inherit these block configurations and region placement from the base theme. But, if the theme regions defined in your sub-theme’s info. yml file do not match those available in the base theme, unpredictable placements in random regions can occur.
Which is the best guide for theming Drupal?
Theming guide for Drupal. You can browse contributed themes or build a custom theme for your site. Define a Drupal theme with an .info.yml file. A theme is a collection of files that define the presentation layer. You can also create one or more “sub-themes” or variations on a theme.
What is the purpose of the classy theme in Drupal 8?
Classy is a theme in Drupal 8 core that is used as a base theme for Bartik and Seven. Its purpose is to provide many classes throughout the Document all css class selectors that are in the classy theme Drupal8 RC 2
Where do I find theming settings in Drupal 8?
In the Drupal administration section, each theme has its own settings page at admin/appearance/settings/themeName. And this page has a form This is a list of some of the most noteworthy changes in Drupal 8 that affect theming.
Can a sub theme be set to any theme?
Site-specific changes can be set to a specific sub-theme, but any shared resources can be edited once to be applied across all the installations. With careful planning, the possibilities are endless. A sub-theme must have a different internal name (i.e., the name used by Drupal) from its parent theme.
Is the base theme in Drupal 7 inherited?
In Drupal 7, features are not inherited from the base theme. If you are using features other than the default, you should copy the features declarations from the parent theme’s .info file. Color.module support within the color directory is not inherited.
How are theme and preprocess functions called in Drupal?
Theme functions are called through theme (‘ [hook]’, $var.). When a sub-theme overrides a theme function, no other version of that theme function is called. On the other hand, preprocess functions are called before processing a .tpl file.