MultipleSelection property shows checkbox on iOS when no backgroundColor style is applied to template

[zbranzov]

Tell us about the problem

If you remove backgroundColor property in SelectionState example it will show checkboxes beneath the list items.

Which platform(s) does your issue occur on?

_iOS

Please provide the following version numbers that your issue occurs with:

• Progress NativeScript UI plugin version: 7.0.5
• CLI: 6.1
• Cross-platform modules: 6.1
• Runtime(s): 6.1

Please tell us how to recreate the issue in as much detail as possible.

1. Start the demo application
2. Remove backgroundColor property from template in Selection states example
3. Checkboxes appear beneath the items https://screencast.com/t/20InnXch4
   Expected: https://screencast.com/t/sj5SfY3RkQF8 - this is fixed by applying ios:paddingLeft="50". Can we do it internally?

Is there code involved? If so, please share the minimal amount of code needed to recreate the problem.

demo example > Selection State