Thanks joe! Yeah, sadly through hole seems to be going away on the whole, but the color codes are still used often by some people, especially while breadboarding or prototyping. I actually referred to a prototype of the card myself while designing a board a few weeks ago:) so some people will likely find one side or the other more useful. Fortunately we've designed the card to be useful in a good variety engineering contexts!

Not sure I understand - Vishay[1] MRS25 resistors are 1% and use a colour code. (http://www.vishay.com/docs/28724/mrs16m25.pdf)

They're generally pretty nice as resistors go. Do you spec better than that?

[1] I used these when they were Philips, which shows how long it is since I was doing this stuff.

The 1% series has an extra value band, which throws off their multiplier. Example: 1k 5% is brown black red (gold), but 1k 1% is brown black black brown (brown).

We do use a few 0.1% values in some cal equipment--about $1 each!

Most SMT resistors use a number code. Also, colorblind people.