Add an alternative to colours to distinguish between prognosis about nevergreen

[thesheps]

I was doing a bit of research on this as I vaguely remember someone talking about this at a con I went to a few years back! Could always look to see if patterns.css could fit the bill as an alternative to colouring, and include an option for build iconography too?

[GentlemanHal]

Looks interesting, but using a library is possibly overkill for what we need. We have 6 prognosis we need to distinguish between, so writing our own CSS might be easier for tweaking etc. Can certainly base it off existing patterns / CSS!

I certainly would like more research on this, I'm far from an accessibility expert and I don't have any colour blindness issues. So it's hard for me to know what would actually be beneficial for people 😖

We also have #196 which is related and might be enough to not need this?

[GentlemanHal]

I was recently playing a card game that used ColorADD.

Looks like it isn't free to use, will reach out to them to see what we can do as an open source project.