How to add icon for H3 heading select button in Quill?

Question

css

Hello everyone, such a question, I use Quill as a text editor on the site and through the toolbar parameter I add an H3 title button, the button is added, but without an icon, how can I add an icon to the button?


JS:

var toolbarOptions = [
  ['bold', 'italic', 'underline', 'strike'],     
  ['blockquote', 'code-block'],

  [{ 'header': 2 }, { 'header': 3}],     
  [{ 'list': 'ordered'}, { 'list': 'bullet' }],
  [ 'link', 'image' ],
  
  [{ 'indent': '-1'}, { 'indent': '+1' }],       
  [{ 'direction': 'rtl' }],                      

  [{ 'size': ['small', false, 'large', 'huge'] }], 
  [{ 'header': [2, 3, 4, 5, 6, false] }],

  [{ 'color': [] }, { 'background': [] }],          
  [{ 'font': [] }],
  [{ 'align': [] }],
  
  ['clean'],                               
];

var quill = new Quill('#form_text', {
  modules: {
      toolbar: toolbarOptions
  },
  theme: 'snow'
});

Answer 1

Try adding code:

const icons = Quill.import('ui/icons');
icons.header[3] = require('!html-loader!quill/assets/icons/header-3.svg');