From Site administration > Mobile app > Mobile appearance, I have updated the "mobilecssurl" field.
The value of the "mobilecssurl" field is: http://my-domain.com/theme/my_theme/mobile_test.css
The "mobile_test.css" has some css code. I have also tried doing "Purge all caches" after updating "mobilecssurl" field.
But, I can't change the Moodle mobile app's front-end style.
My moodle project version is 3.4.2 (Build: 20180319)
I'm using "mb2cg Cognitio" theme on my website.
Is there something I'm missing?