In description field special characters can be created esily and effectively by combination of ASCII characters.

A very useful special character ("emoticon") is the yellow warning triangle, which can be created, inserting parenthesis+!+paranthesis, like

This sign could be effectively used to mark tasks within a "Task Board" as "critical" or "escalated" if it could also be created within the subject line of a ticket.

Unfortunately this shortcut only creates a  if used within the "Description" field (see number 1 in added screenshots), but does not create a warning tiangle if used within the "Summary" field (see number 2 in added screenshots).

Consequently you cannot tag that way a task within a card (e.g. on a Jira task board), as it only would show up like number 3 in added screenshots.

We believe that Atlassian could increase the value of Jira very effectively and yet with low effort if creation of a yeellow warning triangle would also be enebled within Subject line !

Suggested Change Request:

• Enable creation of yellow warning triangle also within Subject line of Jira ticket !

Remark:
JOPSCLOUD-128 seems to request a similar (the same ?) change, which would add significant benefit to Jira while only requiring almost negligable effort by Atlassian.