|chart| "Motor draw (A)" [
|axis| "phase" { side: bottom; }
|axis| { side: left; }
|band| "Close" { span: 0 1.4; fill: --sky; }
|band| "Inject" { span: 1.4 3.1; fill: --rose; }
|band| "Hold" { span: 3.1 5.1; fill: --amber; }
|line| "draw" {
stroke: --rose-deep; fn: `0.12 + 1.2*exp(-((u-0.8)/0.12)^2)` `1.5 + 3.0*u^1.1` 0.5;
}
]