1. For Customizer Panel, please try to refresh your browser (wait for a while) and try to clear your browser cache. And may i know version of your Jkreativ Plugin?
2. If you mean is Clean Style, first section font is ‘Open Sans’, second section style is ‘Lato’ and third section style is ‘Playfair Display’.
3. May i know, if you have some additional style, especially for those element? Anyway try to add this css code below and put it on the Additional Style :
4. Unfortunately at the moment, we don’t have those kind of option. But you can use right side landing navigation to reach certain section on landing page.