How do I enable the customize theme page to accept svg’s?
You’ll also need to add “svg” to the list of valid extensions in WP_Customize_Image_Control: $wp_customize->add_control( new WP_Customize_Image_Control( $wp_customize, ‘themeslug_logo’, array( ‘label’ => __( ‘Logo’, ‘themeslug’ ), ‘section’ => ‘themeslug_logo_section’, ‘settings’ => ‘themeslug_logo’, ‘extensions’ => array( ‘jpg’, ‘jpeg’, ‘gif’, ‘png’, ‘svg’ ), ) ) );