How do I use Fragments to color code the options of a single select custom field

[venkatesh_rajput]

I want to color code the options of a single select custom field on a Jira service desk form, is it possible to do so using scriptrunner?

Here is the fragment that I created which is not working

I chose Show a web panel, and Location as "servicedesk.portal.header"

Condition

import com.atlassian.jira.component.ComponentAccessor

def customFieldManager = ComponentAccessor.getCustomFieldManager()

def cField = customFieldManager.getCustomFieldObjectsByName("Field 1")[0]

def cFieldValue = issue.getCustomFieldValue(cField)

def optionsToColor = ["Option1", "Option2", "Option3"]  // List of option values to color

return (cFieldValue in optionsToColor)

Provider class/script

import com.atlassian.jira.component.ComponentAccessor

import com.atlassian.jira.issue.Issue

import com.onresolve.scriptrunner.runner.customisers.PluginModule

import com.onresolve.scriptrunner.runner.customisers.WithPlugin

import groovy.xml.StreamingMarkupBuilder

@WithPlugin("com.onresolve.jira.groovy.groovyrunner")

@PluginModule

def renderer

def issue = ComponentAccessor.getIssueManager().getIssueObject("ISSUE-KEY")

def script = '''

<script>

    var css = '.js-dropdown-menu .active[data-label="Option1"] { background-color: yellow; }' +

              '.js-dropdown-menu .active[data-label="Option2"] { background-color: orange; }' +

              '.js-dropdown-menu .active[data-label="Option3"] { background-color: red; }';

    var head = document.head || document.getElementsByTagName('head')[0];

    var style = document.createElement('style');

    

    head.appendChild(style);

    style.appendChild(document.createTextNode(css));

</script>

'''

writer.write(script)

Please tell me where am I going wrong