How can i upload simple theme to thunderbird

How do i upload themes to thunderbird. i have created an simple theme (aka persona) for firefox and thunderbird. i uploaded it to firefox, but i cannot use it for thunderbird.

I am not sure I understand your question properly. Are you asking
where to upload the theme you created to make it available for
download by other Thunderbird users, or are you asking how to load
the theme into your own Thunderbird installation?

yes, i want to make it available for other thunderbirdies.
i can accept both solutions.

of course, it is better to use firefox themes in thunderbird by default.

but if that is not possible, i have to upload it in thunderbird.