Warrug.com’s selection of small red rugs illustrates sub groups of red rugs well.
‘Classic Red Rug
‘
“[not] Vegetable Dye”
Modern [true] Vegetable Dye
‘Five Genades’ (random name but most popular style)
‘Squashed Helicopter’ Style’
‘Camoflage Helicopter’ named for harlequin-esque rendering on helicopters. These were readil available in 1999 and 2000. They are like “Classic” red rugs, but not quite as finely knotted.
“Fat RPG’s” (for lack of a better name)