Developer reply by Jarek Bialkowski
Rated 1 out of 5 stars
No se abra la pantalla de correos. No funciona.
This review is for a previous version of the add-on (3.52.4).The theme has nothing to do with opening any windows. It just styling them. I just installed Thunderbird 52.6 as well and I don't see any issues till now. Please disable all your additional plugins and check again. I need more details to track your issue. Which OS are you using? Could you make a screenshot and mark the places where you are clicking?
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