Differtent pattern color for every single column in highchart

defs: { patterns: [{ 'id': 'budget-pattern', 'path': { d: 'M 0 0 L 10 10 M 9 -1 L 11 1 M -1 9 L 1 11', stroke: 'rgba(255, 0, 0, 0.1)', strokeWidth: 3 } }] },

Here the stroke is hardcoded with 'rgba(255, 0, 0, 0.1)' but I want to have different stroke for every column in highchart.

thank you