So you want a 'smiley' icon as well for the "other" quanta, just like
,
,
,
, etc?
I approve, but I don't know how many people would want to put a 'other' symbol into their writing, since there's no such thing as 'other' quanta, or an 'other' mark, since those would be considered rainbows. Other would only be useful for identifying cards with (which sadly, don't have an icon).
Again, I love the art, but I'm not sure about its practicality... ^^;