A couple of things in this regard:
1) Some tracks need to get some new saddlecloths/house silks. Those pinkish 7s and orange-y 8s and faded blue 3s aren't doing anyone any favors.
2) The multiple ownership interests on so many horses have exacerbated the need - we often don't know whose silks a horse is going to run in today until the jock comes out.
3) That said, I don't mind the online programs that include pictures of the silks (like
www.attheraces.com for the UK/Ireland, and I know I've seen them in the TVG app here at least). When the horses are bunched up - it's a big help knowing more than just saddlecloths.