Where to put my own (reusabel) theme

[Ross Gardler]

I have a Forrest based sub project, this project provides its own theme. 
I want to be able to reuse this theme across multiple sites generated by 
my sub-project.

It is not an option to contribute this theme to Forrest (although it 
will be available under the Apache License). Therefore, the ideal 
solution would be to provide a theme plugin, say

ac.uk.osswatch.forrest.themes

However, looking at the sitemaps in the current dispatcher I'm not clear 
on how this can be achieved.

Any pointers?

Ross