I wrote an article about that here: https://www.joshmorony.com/shadow-dom-usage-in-ionic-web-components/
In short, the only way you can style elements inside of a Shadow DOM is if they are styled using CSS4 variables that you can override.
I wrote an article about that here: https://www.joshmorony.com/shadow-dom-usage-in-ionic-web-components/
In short, the only way you can style elements inside of a Shadow DOM is if they are styled using CSS4 variables that you can override.