I'm trying to remove the padding / margin of amChart.

I've tried to use am4core.percent(100) for chart.width and chart.plotContainer.width.
I'm browsing the web for a bit, without success. I don't know if it's because of the amChart logo in bottom left creating that padding.
For AmCharts 5 the correct way for setting padding to 0 is:
const chart = root.container.children.push(am5xy.XYChart.new(root, {
paddingRight: 0,
paddingTop: 0,
paddingBottom: 0,
paddingLeft: 0,
}));
Have a look at their doc: https://www.amcharts.com/docs/v5/reference/xychart/#paddingBottom_setting
Also knowing how a XY chart is structured in AmCharts 5 can be very handy: https://www.amcharts.com/docs/v5/charts/xy-chart/xy-chart-containers/
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