Hello Aleksander,
welcome at Stridaforum 
I was actually hoping that someone knows more…
Sorry, all I can do is to quote myself from another post, about three years ago:
“They” means Ming cycle.
…and maybe add a suggestion:
Couldn’t you simply visit a paint store (of course with Strida) and tell them: “Hey guys please mix THAT colour for me!”
Good luck,
Chris