We've added several improvements to record charting within record types and dashboards:

Duplicate a record chart 

To save time building visuals, duplicate a record chart within the same team.

Chart axes and gridlines 

Add depth and context to your record charts by displaying grid lines or custom X and Y axis labels.

Number chart options 

Summarize by the minumum, maximum, or the range of selected records when using a "number" chart type.