Hello - in older versions of FF I always easily created my own themes using Personas Addon, which could even be done offline.
I tried Firefox Color but it requires being online and I don't want to publish or have my theme created on a remote server. (And frankly could not figure out how to simply create the required .xpi for myself, as the .xpi file creation says it's for publishing/exporting to marketplace.)
Is there an offline theme creator anywhere? Or a tutor to roll your own? TIA
