We have designed this Hub to be easy and intuitive as possible to use. All viewers need to remember to find content is to:
"Select teal circles, rectangles, text, and icons"
When most teal circles and teal rectangles are selected, they open multiple possible actions. When blue text and blue icons, they usually do one action.
Most color blind people can distinguish the teal and blue colors from the level of shading. For those with more severe blindness issues, an audio-based user experience is coming next year.