Colored Exclamation Mark for Trello for Chrome
More About Colored Exclamation Mark for Trello
A Exclamation Mark is useful to categorize cards e.g, in scrum you may add !<story id> to specify to which story belongs.
This plugin extracts Exclamation Mark in a card title and change cards' background color according to it. This feature enhances visibility and you might be able to distinguish cards at glance.
Note: modify for change a hashtags to exclamation mark Credit by "Colored Hashtag for Trello"