Standardize focus styles across components #283
Description
Is your feature request related to a problem? Please describe.
We have standard focus styles for interactive elements, but also component-level customized focus styles for certain elements with different colored backgrounds (see the dismissible alert "close" button as an example).
Describe the solution you'd like
Research and, if possible, create a single standard focus style that works across all elements. Consider the Chrome browser default styles approach of including two colors in the outline to adapt to both light and dark backgrounds.
Describe alternatives you've considered
We can continue to maintain component-level focus styles as needed, but this has maintenance costs over time, with lack of maintenance and consideration when designing new components results in accessibility issues.