Theme

What it does

This class handles the backend configuration for theme settings in Magento 2.

It validates theme selections for the frontend area, ensures the theme exists before saving, and automatically invalidates related caches (blocks, layout, etc.) when a theme is changed or deleted.

Developers use this as the backend model for the design/theme/theme_id configuration field.

Public Methods

• beforeSave()
• getValue()
• afterSave()
• afterDelete()