Hi there!
I really love this mode. Since it came out, this is my standard UI.
In some places you can "grab" elements on the UI. Like reordering stuff, etc. Currently there is no visible indicator in this mod, which can make situations confusing. Could you add some visible element? I think the original vertical lines are great too and mostly aligns with this UI.

Hi.
Vanilla "drag lines" do not match the style of the flat interface.
And the factorio engine does not allow making standard "drag dots". So I removed them.
But since you asked, I tried to make them as suitable as possible. I hope you like it.

WoW! Thank you! you are really great and attentive!