I have some comments/queries re the Bootstrap 4 Navs, using AppStudio 7.0.2. Some may be Boostrap related, some AppStudio:
The only way I can get the tabs to appear selected/deslected is to add and remove the active class from the appropriate tab. Is this the intention? The sample app does not indicate so.
At runtime, if the first tab is selected the value of Navs1.value is 0, but for all other tabs the value is -1.
When running on a Android or iOS device, clicking and holding a tab for a short time brings up a long system context menu, even if user select:none; is added to the style. When running in a desktop chrome browser, hovering over a tab causes an IP address(?) to be displayed in a pop-up at bottom of the browser.
Can these be turned off?