Which component(s) are affected?

Dropdown

Description

The WC dropdown uses the igx-icons in it's prefix/suffix slots and it causes them not styling properly

Reproduction

• Open the dropdown sample in Angular Dev Demos
• Create a custom theme, setting both item-text-color and item-icon-color properties and all their states
• If you compare it to angular, you'll see how the angular dropdown uses the icon color properties, and the dropdown from wc uses text color properties for the icons