# This rule facilitates the deprecation of elements(e.g header, footer, body, link) variables in the classic theme and provides automatic fixes to replace these elements variables with variables from the new theme or fallback values (`jimu-theme/no-classic-elements`) 🔧 This rule is automatically fixable by the [`--fix` CLI option](https://eslint.org/docs/latest/user-guide/command-line-interface#--fix). ## Options | Name | Description | Type | Default | | :------------- | :---------------------------------------------------------------------------------------------------------------------------------------------------- | :------- | :---------------------------------------------- | | `themeAliases` | The plug-in determines whether a variable is a theme variable based on the "theme" keyword. If you use another name, define it through this property. | String[] | [`theme`, `theme2`, `builderTheme`, `appTheme`] |