Atari 2600 variants - can these be added?

Hi - GREAT resource you all offer.

I collect Atari 2600 cartridges, having a few hundred.  I separate mine out not only alphabetically, but also by type of 2600 cartridge, INCLUDING COLOR VARIATIONS.  For example, the current listing shows three types of "Football" cartridges for the 2600, namely "Football," "Football [Tele Games]," and "Football [Text Label]."  Football, however, as at least two color variants for the text label - a gold color and a green color.  See the attached image.

I realize that identifying values for the different variants may be difficult, but it would be great to at least list the color variants (and other variants, such as video pinball with and without the extra "q" on the end label, text label combat with and without the "01" at the beginning of the end label, etc.) on the list for purposes of tracking collections.  This would be awesome.

Thanks for considering this request.  Also, if there is a mechanism to directly email information about variants (with images), etc., that would be great as well.

Mark R.