Thanks for your reply @fanningert.
Understood about colorize only for PNGs, and a workaround would be great if you get the chance.
As for the examples on your site, I had already seen those, and I’ve read through the documentation on the github page. However they all seem to relate to using the plugin as a KirbyTag rather than as PHP in a template. I might be missing something obvious, but would you be able to provide an example of how to use the plugin in a template?
Thank you!