Is your feature request related to a problem? Please describe.
I'd love to be able to use the autosuggestion and preview when setting a file icon, but at the moment Iconize throws an "Icon not found" warning when I try to use an Icon wrapped in colons as file icon.

Describe the solution you'd like
I'd like to be able to use icon: ":IconName:" in addition to icon: IconName in a note's frontmatter

Describe alternatives you've considered
It would also be possible to show the autoselect dropdown when Iconize detects the user typing in the frontmatter, in an icon: key, but I feel like it would be simpler to allow the colon syntax and strip the colons where necessary.

Additional context
n.a.