Whoa! My crowns are now "color coded"
Such that now all level 1s are blue, level 2s are green, level 3s are red, and level 4s are orange.
I like this. I still use duolingo.eu to figure out what skills I need to practice. But I do appreciate the color coding.
Oh, I really only focus in Spanish, I haven't really investigated the other languages I was starting to learn (and have since given up). I just visit here: https://duolingo.eu/mbova7/progress (but with your user name) and click the little weight next to all the non-gold ones. I agree, I can't figure out how to switch to my French, etc. Maybe a smart person who has been using duolingo.eu longer may be able to help us figure that out.
I've only known about duolingo.eu since crowns were introduced; and similarly to you I use it purely to see which skills need practising next, due to the decay of skills.
To change the duo.eu site to a different language; you just need to switch the language you're learning on the main duolingo site, then refresh the .eu page.
Hope that's what you're after?
I love the new colors!
And as far as practicing goes, I have found that Duo uses a pretty good system to let you practice in a systematic way. I just use the "practice" button on the main site, and when I compare (on the Duolingo.eu site which skill it improved, I find that it starts to improve the 75% ones first, to bump them up to 100% (starting from the lowest of the 75% ones, at least generally, as far as I've seen). I would assume that it will then go on to the 50% ones, but I haven't gotten that far yet.
Right now I'm focusing on my French tree so I can get the golden owl...But I experimented with my other languages to find out how the practice worked.
As I strongly focus (with some random general Practice exercises) on 16 more difficult "grammar (verb) skills" on my forward EN-PT tree since I completed my tree (golden owl), I would like to see all of these in a special customizable colour.
I believe that different types of skills should be different colours, and maybe the crowns number can be coloured instead of golden crown (or gold if L5).
Oh interesting idea here. I think it's a bit tough to determine what the more or less difficult skills would be, though --- feels subjective doesn't it?
For me, I find nouns much easier to recall than verbs, especially when speaking aloud. I think that is because of the concrete nature (kind of the way you remember things in a memory palace exercise). I'm not sure everyone feels that way though.
I would definitely love a way to look at your tree in terms of skill type though: for instance, I desperately want a way to see all my verbs, and which ones I'm stronger at and which ones I'm weaker at (rather than which skill I'm weaker or stronger at overall). I'm still struggling mightily with pronouns and reflexive verbs too.
It helps me a lot to scan the page. When my colors were all mixed I felt like I was staring at a mess, now it's much easier to figure out what's going on at a glance. Based on the responses here, this is something they are rolling out slowly with some people having it and others not.
FYI I am using Google Chrome on my laptop. I don't like the iOS app nearly as much and I pretty much just keep it in case I'm traveling :(.