Accessibility active yellow highlights

When an accessibility user selects (active) an object we see the yellow highlight (cosmos). This works on main activity screen (right). But on the Navigation (left), the color ratio is not accessible. Can we target the navigation and change color or do I remove the yellow and go transparent? what are the impacts?

The color contrast ratio between the <element/icon> and its background is less than 3.0:1.

Also, the label text for bottom menu item black text on blue background? How do I fix?

@Michaelw1090 cosmos theme does not use a yellow highlight for an active menu item - this is likely something that you have already customized in your app - the background color can be changed through override CSS