OptionalcloseOptionalhighHigh column. Default 'high'.
OptionallowLow column. Default 'low'.
OptionalmultiplierBand half-width in ATRs. Default 3.
OptionalperiodATR look-back in bars. Default 10.
OptionalprefixColumn-family prefix — appends ${prefix} (the line) and
${prefix}Trend (+1 up / −1 down). Default 'st'.
Close column. Default
'close'.