Defaults & merging

Partial chartData is merged over ChartBuddy defaults when you create or update an Insight.

Deep-merge keys

These nested objects deep-merge:

• title
• subtitle
• legend
• axes
• canvas
• footnote

Other top-level keys typically replace.

Practical tip

Start minimal (chartType + seriesData + title/subtitle/legend). Add axes or annotations only when you need them — or export a full config from the editor and trim.