AreaChart:With steps, fmt and labels

Build 423 on next
1200px
Reviewing disabled
View latest build
BaselineBuild 367 on next
View Storybook
NewBuild 423 on next
View Storybook
Baseline History
Build 4233d7d931
Current build. There are unaccepted changes, so build 367 is still the baseline.
Show baseline inheritance
Build 3653fd43b3
Accepted by Zach Stence.
Build 356ef3dd43
Accepted by Zach Stence.
Build 3525e4f34e
Accepted by Zach Stence.
Commenting is disabled because there's a newer build on this branch
Go to Build 2528 now