public function setup_content_settings() {
		return [
			'post_title_color_choice' => [
				'sanitize_callback'    => 'sanitize_key',
				'sanitize_js_callback' => 'sanitize_key',
			],
			'post_title_color'        => [
				'sanitize_callback'    => 'sanitize_hex_color',
				'sanitize_js_callback' => 'maybe_hash_hex_color',
			],
			'details_bg_color'        => [
				'sanitize_callback'    => 'sanitize_hex_color',
				'sanitize_js_callback' => 'maybe_hash_hex_color',
			],
		];
	}