Add disposeBackgroundOnTap or something

[sed1ka]

Is your feature request related to a problem? Please describe.
In the flow of my app, before running the showcase, I create a showDialog to alert the user that there is a new feature. There are two buttons 'explore' and 'ignore', if the user selects the 'explore' button, then ShowCase will run.

I used Showcase.withWidget to add custom "Next" and "Skip" buttons in tooltips

• 'Next' button, serves to go to the next showcase
• 'Skip' button, serves to close all showcases.

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Describe the solution you'd like
The problem is, that everything I applied above is useless because the showcase can be closed by pressing the background overlay. There is a disposeOnTap function, but it only works for tooltips or container in the Showcase.withWidget parameter, not with background overlays. Please add a parameter like disposeBackgroundOnTap or something