- gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 255), 1, wxPENSTYLE_SOLID));
+ wxColour const colour = gui_is_dark() ? wxColour(182, 204, 240) : wxColour(0, 0, 255);
+ gc->SetPen(*wxThePenList->FindOrCreatePen(colour, 1, wxPENSTYLE_SOLID));