Chart labels, styles and units

Chart titles and exact-series labels are optional when model metadata provides a clear description.

Label and style exact lines

- chart:
    title: Inflation targets
    series:
      - variable: INFX(USA)
        label: USA
        style:
          color: blue
          line: solid
      - variable: INFX(CHN)
        label: China
        style:
          color: "#d62728"
          line: dot

Always quote a hexadecimal colour beginning with #, otherwise YAML treats it as a comment. Supported lines are solid, dot, dash, longdash, dashdot and longdashdot.

Standalone chartpack YAML uses the literal key color. Setup YAML uses colour in its concise chart declaration.

Keep units compatible

Every resolved series in a chart must have the same units. Do not put a level index and a percentage-point deviation on the same axis. Use separate charts:

- chart:
    title: Inflation
    series:
      - variable: INFL(USA)
- chart:
    title: Real GDP
    series:
      - variable: GDPR(USA)