title: Module to draw over other apps in flutter?
body: <p>I am trying to make a alarm app where  I want to display a popup and play a sound so that the user gets alarmed. I first found the System_Alert_Window module, but it looks like it lacks a bit of styling property. I can set the background color of the whole popup + I cant attach any image. So, is there any alternative to that module to draw over other apps?</p>