Angular-split icon override

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <title>angular2 playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="https://unpkg.com/zone.js/dist/zone.js"></script>
    <script src="https://unpkg.com/zone.js/dist/long-stack-trace-zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script>
    <script src="config.js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <my-app>
    loading...
  </my-app>
  </body>

</html>

/* Styles go here */

split-gutter {
  background-image: url('data:image/png;base64,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') !important;
}

### Angular Starter Plunker - Typescript

System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  //map tells the System loader where to look for things
  map: {
    
    'app': './src',
    
    '@angular/core': 'npm:@angular/core@2.4.1/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common@2.4.1/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler@2.4.1/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser@2.4.1/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@2.4.1/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http@2.4.1/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router@3.4.1/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms@2.4.1/bundles/forms.umd.js',
    
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.0.2/lib/typescript.js',
    'angular-split': 'npm:angular-split@0.1.20/dist/index.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    },
    'angular-split': {
      defaultExtension: 'js'
    }
  }
});

//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app';

platformBrowserDynamic().bootstrapModule(AppModule)

//our root app component
import {Component, NgModule} from '@angular/core'
import {BrowserModule} from '@angular/platform-browser'
import { AngularSplitModule } from 'angular-split'

@Component({
  selector: 'my-app',
  styles: [`
    :host {
      display: block;
      width: 500px;
      height: 400px;
      background: grey;
    }
  `],
  template: `
      <split direction="horizontal" [gutterSize]="40">
          <split-area [size]="30">
              <p>Lorem ipsum dolor sit amet...</p>
          </split-area>
          <split-area [size]="70">
              <p>Sed ut perspiciatis unde omnis iste natus erro...</p>
          </split-area>
      </split>`,
})
export class App {}


@NgModule({
  imports: [ BrowserModule, AngularSplitModule ],
  declarations: [ App ],
  bootstrap: [ App ]
})
export class AppModule {}