There are notification templates geared towards the ITSM and PPM side of the house. Ticketing template are found inside the ticketing apps. Project templates are found inside the notification templates section in the root of admin.
If you would like your project notification templates to show differently from the TD defaults, then you will have to do so under the Project Notification Templates section within Admin. Whether you are adding branding colors or just making changes to the TD defaults, this is where all of that can be done. Please Note: If nothing is done within this section of Admin, then the system will pull the default layouts and content for that type of notification. Also note that this is intended to be edited by people who are skilled and fluent in HTML. If a resource is not available internally, then contact your Implementation Consultant and they will help come up with a solution.
To insert a Template Tag, click the Insert Template Tag drop down menu to select one from the list; you can also edit the HTML as needed on this screen. When done with your changes, click Save, and then click Generate Preview to see what you have. Once you are happy with your new notification, then you can click the Enable button. See screen shot below:
Please note that editing this section is not turning on or turning off system generated notifications of that type. Editing and enabling the notifications section will ensure that the system pulls from the newly created HTML version vs using the system defaults.
As of Version 9.0, there is no way to globally turn off all notifications for your environment.
Also note that this section intentionally does not use an HTML generator due to the fact that clients use a variety of programs to read email that might allow or block certain HTML elements, and this might unintentionally disfigure up the final product. An example of this is the div tag. Tables are currently the default tags for email layouts, and inserting div tags might send out incoherent notifications.
Lastly, you may also manually type template tags into the template.The templates use Mustache template markup language, documented here: http://mustache.github.com/mustache.5.html