Plugin of Jira Calendar Gadget modified to show the issue colors by StatusCategory instead of Priority. Compatible with Jira 7.x and Jira 8.x
File for Jira 7.x Download Jira Calendar Plugin for Jira 7 by MrAddon
File for Jira 8.x Download Jira Calendar Plugin for Jira 8 by MrAddon
Original repo from Atlassian: https://bitbucket.org/atlassian/jira-calendar-plugin/src/master/