URL: http://github.com/angular/material/issues/11975
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Bug
Demo and steps to reproduce the issue
This blank StackBlitz demo can be used to create a reproduction that demonstrates your issue.
Demo URL (required)*: https://material.angularjs.org/HEAD/demo/radioButton
Detailed Reproduction Steps
Explain the expected behavior
In step 3, focus indicator should be visible.
In step 5, selection should be visible.
Explain the current behavior
Focus indicator and selection are not visible.
Discuss the use-case or motivation for changing the existing behavior
It will be difficult to use under Windows high contrast if neither focus nor selection is visible.
List the affected versions of AngularJS, Material, OS, and browsers
Screenshots
A screenshot on Windows with high contrast mode:
