We have implemented the new theme structure according to WordPress Guidelines. We enhance the data saving probability if the user switches to another theme. In Aneeq 2.x version no major data will be lost.
In Aneeq2.x version data will be generated by using posts/pages for the theme custom section on the front page. Like, if you set up the static front page and after that enable Aneeq Slider section form customizer then you need to create a slide post/page to apply into the slider.
We made a complete video tutorial for Aneeq 2.x version to setup themes on your WordPress website.