in share/src/sprite-editor/svgUtil.ts [717:730]
function lengthWithUnits(value: number, unit: LengthUnit) {
switch (unit) {
case LengthUnit.em: return value + "em";
case LengthUnit.ex: return value + "ex";
case LengthUnit.px: return value + "px";
case LengthUnit.in: return value + "in";
case LengthUnit.cm: return value + "cm";
case LengthUnit.mm: return value + "mm";
case LengthUnit.pt: return value + "pt";
case LengthUnit.pc: return value + "pc";
case LengthUnit.percent: return value + "%";
default: return value.toString();
}
}