How filtering those new qualities supposed to work? I don't see any option as of now O..o

With the mod Filter helper (which shows items on right panel of opened inventory) shows those new qualities.
But I can't select them manually in the list :/

For some reason > Legendary in the filter makes the job? But why and how?

In the mod Hextorio qualities are visible in the selection menu. (when trading items)
And they are at the end of any quality, which tells why method above worked.

Sorry I didn't get back to this in a timely manner. The shiny qualities are hidden by default to make it hard or impossible to get shiny components to make shiny machines. The end goal was to have shiny rolls attempted only against the end product, and never against the intermediates.

I might have to revisit this design philosophy in the future though.

Hello, jumping on this question: indeed, if it's impossible to filter things—for example on a logistic requester chest or an inserter—it makes the mod extremely complicated to use. Which is a shame, because the idea is excellent

I will say, it is very much technically possible to do with a combinator (the act of requesting at a shiny quality). You can request all shiny intermediates or final products in one place. If I made the qualities unhidden, then the menu becomes chaotic as all heck, which is problematic.

If you actually want to know how to make shiny quality machines with shiny quality intermediates, here is the solution: https://imgur.com/a/2UhuALG

There are likely FAR more complex setups than that where you can make some interesting factories, but yeah. That will cover setting a custom recipe for a shiny quality item, as well as making requests to satisfy that item. You can take the generic solution of this, and centralize your shiny items using this tech.

Thank you for the answer and the demo!

You're welcome! I hope it helps!