What UI Improvements are possible on creator?

What UI Improvements are possible on creator?

Hi there, 
Need help around below UI points:

1) How can we make UI customisations across devices? Example 1 view for Mobile, 1 for laptop browser, 1 for tab, etc
2) To show page tree and help navigation within an application, what can we do to show hyperlinks like 
   HOME --> Main --> Sub Menu --> Current Page
3) If we add images, can we place Buttons around the custom image? If yes, how can we auto scale this image across devices? 
4) Can we find Zoho Creator UI Specific developers on the Zoho Developer Community?

Please provide some tips on Creator UI Development thanks.