Custom color for a group in grouped bar chart using plotly js

Hi , Can you please let me know how we can change the color for each group in a grouped bar chart. I am using plotly js.
Below is an example from documentation. Here i would like to change the color of the blue and orange group.

I can change the color of each bar for different values of x using markers:{color:} but not the group.

Kindly let me know if you need any other details.

Hi @rajkiran ,

try to use Plotly.restyle for changing color every trace with different value in an existing plot.

var trace1 = {
  x: ['giraffes', 'orangutans', 'monkeys'],
  y: [20, 14, 23],
  name: 'SF Zoo',
  type: 'bar'
};

var trace2 = {
  x: ['giraffes', 'orangutans', 'monkeys'],
  y: [12, 18, 29],
  name: 'LA Zoo',
  type: 'bar'
};

var data = [trace1, trace2];

var layout = {barmode: 'group'};

Plotly.newPlot('myDiv', data, layout);

// restyle the first trace's marker color 'red' and the second's 'green'
var update = {
    'marker.color': ['red', 'green']
};
Plotly.restyle('myDiv', update, [0, 1])

Thank you… this worked!!