What is the problem or goal the end user is trying to solve or accomplish?
Be able to easily decipher the D3 number formatting options without having to interpret the D3 symbolization and add more options for D3
How are they solving it currently?
Clicking through each D3 number format option to check if it's the right format. Google searching for more D3 options
What is the recommended solution by the Customer?
Provide more examples next to the D3 number format so a user can quickly read through and choose the right format