How to Change Font Color of Swimlane Header in Javascript Diagram?

Header is the primary element for swimlanes. The header property of the swimlane allows you to define its textual description and to customize its appearance in JavaScript Diagram.
To customize the font color of the swimlane header, you can use the color property within the style property within the swimlane header annotation. This allows greater flexibility in designing your diagrams.

Refer to the below code snippet for customization of font color in swimlane header

header: {
         annotation: {
           content: 'SALES PROCESS FLOW CHART',
           // Update font color for swimlane header
           style: { fill: 'black', color: 'yellow' },
         },
       }, 

The below code example shows how to customize the font color of swimlane header at run time using color picker when the swimlane is selected

  var node = [
 {
   shape: {
     type: 'SwimLane',
     orientation: 'Horizontal',
     // Customize the swimlane header
     header: {
       annotation: {
         content: 'SALES PROCESS FLOW CHART',
         // Update font color for swimlane header
         style: { fill: 'black', color: 'yellow' },
       },
     },
     lanes: [
       {
         id: 'stackCanvas1',
         height: 100,
       },
     ],
     phases: [
       {
         id: 'phase1',
         offset: 170,
         header: { annotation: { content: 'Phase' } },
       },
     ],
     phaseSize: 20,
   },
   offsetX: 300,
   offsetY: 200,
   height: 200,
   width: 350,
 },
];

// Initialize Diagram component
var diagram = new ej.diagrams.Diagram({
 width: '100%',
 height: '600px',
 nodes: node,
});
diagram.appendTo('#element');

// Update font color for swimlane header at run time using color picker
document.getElementById('fontColor').onchange = function () {
 if(diagram.selectedItems.nodes[0] && diagram.selectedItems.nodes[0].shape.type == "SwimLane")
 {
   let currentColor = document.getElementById('fontColor').value;
   diagram.selectedItems.nodes[0].shape.header.annotation.style.color = currentColor;
   diagram.dataBind();
 }
};

Sample : Click here

Conclusion
I hope you enjoyed learning how to change the font color of the swimlane header in JavaScript Diagram.

You can refer to our JavaScript Diagram feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our JavaScript Diagram example to understand how to create and manipulate data.
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