Properties
string[]
required
X-axis category labels in display order (Slack: max 20 characters each)
ChartSeries[]
required
Type:
ChartSeriesData series (Slack: 1-12); each series needs one point per category"area" | "bar" | "line"
required
string
X-axis title (Slack: max 50 characters)
string
Y-axis title (Slack: max 50 characters)