[Downunder Dan]

I haven't seen any explanation for the "domino" part of Grey Domino. I wonder if there's something in the first issue? The mask varies over time, the loose-fitting hood becoming a close-fitting full face mask, and eventually a grey mask that leaves the nose and mouth exposed.

Possibly it isn't a reference to the mask. Dominoes are also wooden tiles marked with a range of dots used in a game - but the dominoes themselves are used in displays where one domino falling forward knocks down the next and so forth. They 'fall like dominoes', which is used as a metaphor for one action having a larger consequences. Is the Grey Domino taking action the first in a chain of actions (or am I stretching the metaphor)?

Link to the comment: Grey Domino 2

[The Australian Panther]

Thinking about that, I went searching, and found this.
Here is a "Domino Mask' font!

https://fonts2u.com/domino-mask-outline.font

Domino Mask Outline Daniel ZadoroznyW