Dear Ramiro,
I wasn't happy with the solution as other setting values were broken too (https://gitlab.com/jezhops/moodle-theme_adaptable/-/commit/28236c4414cdcb6086f09519ffa4bf1f459df3f6). Therefore, the easiest thing for you to do is to have a test server and install 'master' -> https://gitlab.com/jezhops/moodle-theme_adaptable/-/tree/master - where you can get all off the code using the 'download' icon. Then test by importing your JSON settings that you posted. 'master' is a moving target though, so should not be used in production and may contain bugs, well, that's true of the released versions too.
Gareth
I wasn't happy with the solution as other setting values were broken too (https://gitlab.com/jezhops/moodle-theme_adaptable/-/commit/28236c4414cdcb6086f09519ffa4bf1f459df3f6). Therefore, the easiest thing for you to do is to have a test server and install 'master' -> https://gitlab.com/jezhops/moodle-theme_adaptable/-/tree/master - where you can get all off the code using the 'download' icon. Then test by importing your JSON settings that you posted. 'master' is a moving target though, so should not be used in production and may contain bugs, well, that's true of the released versions too.
Gareth