Hi Chris
1. If you want to search by metric name, you can use the search feature present in the metric name column header in the table.
2. As for the proportion view, this is an unexpected behaviour. Let me take a look at it and get back to you. Could you please share what web browser you are using? And if you're are using chrome, are you using any dark mode extensions that may forcefully change colors in a website?
Other than that, I understand that the current UX may have been confusing/unhelpful. Other than the search feature, are there any other pain points for you? We'd love to get your feedback and improve upon it in future iterations.