functions.phpに以下を追記します。
remove_filter( 'admin_color_scheme_picker', 'admin_color_scheme_picker' ); function admin_color_force_fresh() { return 'fresh'; } add_filter( 'get_user_option_admin_color', 'admin_color_force_fresh' );
functions.phpに以下を追記します。
remove_filter( 'admin_color_scheme_picker', 'admin_color_scheme_picker' ); function admin_color_force_fresh() { return 'fresh'; } add_filter( 'get_user_option_admin_color', 'admin_color_force_fresh' );