Forecast extension Cheetah Generator options

[weather list]

I note that the forecast extension has a template called tides-graphic.htmk.tmpl but I can find no indication of that template file. Anyone know what this is about?

[[[tidesgraphic]]]
# template = tides-graphic.html.tmpl

# configuration file for the forecast skin demonstration
# $Id: skin.conf 1780 2018-01-27 15:27:02Z mwall $

[Extras]
version = 3.4.0b10

[CheetahGenerator]
search_list_extensions = user.forecast.ForecastVariables
[[ToDate]]
[[[forecast]]]
template = index.html.tmpl
[[[table]]]
template = single-table.html.tmpl
[[[multitable]]]
template = multiple-tables.html.tmpl
[[[strip]]]
template = single-strip.html.tmpl
[[[stripvertical]]]
template = single-strip-vertical.html.tmpl
[[[multistrip]]]
template = multiple-strips.html.tmpl
[[[periods]]]
template = forecast-periods.html.tmpl
[[[zambretti]]]
template = zambretti.html.tmpl
[[[tides]]]
template = tides.html.tmpl
# [[[tidesgraphic]]]
# template = tides-graphic.html.tmpl
[[[iconic]]]
template = iconic.html.tmpl
[[[iconichorizontal]]]
template = iconic-horizontal.html.tmpl
[[[compact]]]
template = compact.html.tmpl