Hi Pablo,
To summarise all of the previous posts along the lines of the same question:
- Testing to find any issues, report here initially for discussion and check that has not already been raised: https://github.com/gjb2048/moodle-theme_essential/issues/ - fixed in the next version that has not been released yet: https://github.com/gjb2048/moodle-theme_essential/blob/master/README.txt#L191
- Provide fixes for current issues - current list of issues is here: https://github.com/gjb2048/moodle-theme_essential/milestones/Moodle%202.9%20version - I already know how to fix https://github.com/gjb2048/moodle-theme_essential/issues/520, just a matter of time and I'm busy with other things.
- Sponsorship, please see: https://github.com/gjb2048/moodle-theme_essential/blob/MOODLE_28/README.txt#L69-L80
Kind regards,
Gareth