Background set to Transparent doesn't have the same behavior as BackgroundColor = Transparent

[pictos]

Description

In my attempt to make my modal page transparent, I found this issue where Background = Transparent doesn't have the desired effect, but BackgroundColor = Transparent does have. They should have the same behavior, no?

With Background = "Transparent":

With BackgroundColor= "Transparent":

Steps to Reproduce

1. Open the repro project
2. Click on the button to do a Modal Navigation
3. You can't see the underline page (If using Background = Transparent)

Link to public reproduction project repository

https://github.com/pictos/BackgroundTransparentIssue

Version with bug

8.0.40 SR5

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

No response

Did you find any workaround?

Use BackgroundColor instead

Relevant log output

No response

[github-actions]

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[Zhanglirong-Winnie]

Verified this issue with Visual Studio 17.11.0 Preview 1.1(8.0.40). Can repro on iOS platform with sample project.

[kubaflo]

So it looks like setting the background color gives the effect I would expect. I wonder if, currently, the result of setting background to transparent is what it is supposed to be or not🤔

[mattleibow]

The behaviour is supposed to be exactly the same. In Core code we basically have a single property that is

Background => Background ?? BackgroundColor

If there is a difference in behaviour, it is interesting.

This would happen if in one style you are using Background and another you are using BackgroundColor. I really want to deprecate/remove the BackgroundColor because it is more limited and causes this type of confusion.

If you have a look at styles, do you perhaps have a mixed usage of property.

[dotnet-policy-service]

Hi @pictos. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[mattleibow]

Oh wait, is a whole new page with shell navigation. I wonder if there is some missing logic in page or shell to respect background.