What is the problem or goal the end user is trying to solve or accomplish?
Colors in bubble charts are often used as another dimension to communicate something about the data. Colors would be a natural way to flag assets that need attention (e.g., green→ Low Concentration, yellow → Medium Concentration, red → high concentration)
How are they solving it currently?
No current way. The pre-defined color schemes lead to random color orders (Yellow→ Low, Red→ Medium, Green→ High), which detracts from the data in the chart instead of making it more useful.
What is the recommended solution by the Customer?
Be able to specify color of the bubble in a bubble chart via a column in the query. i think the deck.gl scatter plot viz already allows this but bubble chart does not.