Man pages matching name chart::clicker::decoration::markeroverlay in section 3pm:

Chart::Clicker::Decoration::MarkerOverlay.3pm.en	debian 10 / libchart-clicker-perl
Chart::Clicker::Decoration::MarkerOverlay.3pm.en	debian 11 / libchart-clicker-perl
Chart::Clicker::Decoration::MarkerOverlay.3pm.en	debian 12 / libchart-clicker-perl