Hi,
I noticed couple of mismatch between the color theme of a few lessons and their corresponding grade. It’s of course a tiny issue, but I though I’d mention it anyway, as it might be something that got forgotten, and fixing it might be easy 
So here is a first sneaky one with the Blues studies, where an orange box appears above lessons belong to grade 4 (green)
A second one applies to all the “Blues Lead Guitar” lessons in grade 4, which have a blue thumbnail instead of green
Thanks in advance for any possible fix. And thanks for the great work in general!