Add Inline Images/logos in notifications

The current approach supported is to use image data tags, you could either pre-encode your image (eg with an external website such as https://codebeautify.org/image-to-base64-converter and include the data manually in a TemplateSet:

<img src=”data:<MIMETYPE>;base64,<BASE64_ENCODED_IMAGE>”>

https://stackoverflow.com/questions/8499633/how-to-display-base64-images-in-html#8499716

A feature of JEMH (Static Resources) can do this automatically. Here is an example of how we can 'inline' an image in the above way for a resource with ID 27.

$jemhUtils.renderStaticResourceImage($issue.getProjectObject(), 27)

Alternate paths to consider are externally hosted image files, eg from a CDN:

<IMG SRC="http://cdn..../image.png">

The following site adds some more background to approaches and highlights how no one solution is perfect.

https://www.campaignmonitor.com/blog/email-marketing/2019/04/embedded-images-in-html-email/

As yet JEMH doesn't have the ability to attach 'referred' Static Resources' via CID image embedding, that improvement is being tracked internally as JEMH-7164OPEN .