It is a dark curtain. I wish they came in a wider option, this is really the bare minimum length for a sliding glass door curtain. In my opinion it's the best of what's available on the market without paying an exorbitant amount on custom curtains.
I purchased 3 panels as I have 2 - 8’ patio doors. I wanted a little fullness when drapes were closed. I cut one panel in half and sewed one half to each full panel and I am very happy with the outcome. I would definitely purchase these again.
Invested in these this summer. The heat has been brutal this June & July so far