Astra_Customizer_Sanitizes::sanitize_number( number $val, object $setting )

		public static function sanitize_number( $val, $setting ) {

			$input_attrs = array();

			if ( isset( $setting->manager->get_control( $setting->id )->input_attrs ) ) {
				$input_attrs = $setting->manager->get_control( $setting->id )->input_attrs;
			}

			if ( isset( $input_attrs ) ) {

				$input_attrs['min']  = isset( $input_attrs['min'] ) ? $input_attrs['min'] : 0;
				$input_attrs['step'] = isset( $input_attrs['step'] ) ? $input_attrs['step'] : 1;

				if ( isset( $input_attrs['max'] ) && $val > $input_attrs['max'] ) {
					$val = $input_attrs['max'];
				} elseif ( $val < $input_attrs['min'] ) {
					$val = $input_attrs['min'];
				}

				$dv = (float) $val / $input_attrs['step'];

				$dv = round( $dv );

				$val = $dv * $input_attrs['step'];

				$val = number_format( (float) $val, 2, '.', '' );
				if ( $val == (int) $val ) {
					$val = (int) $val;
				}
			}

			return is_numeric( $val ) ? $val : 0;
		}