just tried to change my markers using a custom "Added Template.pdf".
But now I get a gray marker (and not colorized): https://feek.d.pr/YoekKz
Marker is OK, but no color.
I just cloned the original TM bundle "scm-diff-gutter.tmbundle" into the:
~/Library/Application Support/TextMate/Pristine Copy/Bundles
folder, and updated the "Added Template.pdf" file.