new icon fixes jupyter-server#3

Author: echarles

src/index.ts

@@ -3,10 +3,11 @@ import {
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import { INotebookTracker } from '@jupyterlab/notebook';
+import { LabIcon } from '@jupyterlab/ui-components';
 import { ICommandPalette } from '@jupyterlab/apputils';
 import { ILauncher } from '@jupyterlab/launcher';
-import { jupyterIcon as icon } from '@jupyterlab/ui-components';
 import { KernelUsagePanel } from './panel';
+import tachometer from '../style/tachometer.svg';
 
 namespace CommandIDs {
   export const getKernelUsage = 'kernel-usage:get';
@@ -41,7 +42,10 @@ const plugin: JupyterFrontEndPlugin<void> = {
     commands.addCommand(CommandIDs.getKernelUsage, {
       label: 'Kernel Usage',
       caption: 'Kernel Usage',
-      icon: icon,
+      icon: new LabIcon({
+        name: 'jupyterlab-kernel-usage:icon',
+        svgstr: tachometer
+      }),
       execute: createPanel
     });
 

src/panel.ts

@@ -1,9 +1,10 @@
 import { Message } from '@lumino/messaging';
 import { ISignal } from '@lumino/signaling';
 import { StackedPanel } from '@lumino/widgets';
-import { KernelUsageWidget } from './widget';
-import { jupyterIcon as icon } from '@jupyterlab/ui-components';
+import { LabIcon } from '@jupyterlab/ui-components';
 import { INotebookTracker, NotebookPanel } from '@jupyterlab/notebook';
+import { KernelUsageWidget } from './widget';
+import tachometer from '../style/tachometer.svg';
 
 const PANEL_CLASS = 'jp-kernelusage-view';
 
@@ -16,7 +17,10 @@ export class KernelUsagePanel extends StackedPanel {
     this.addClass(PANEL_CLASS);
     this.id = 'kernelusage-panel-id';
     this.title.caption = 'Kernel Usage';
-    this.title.icon = icon;
+    this.title.icon = new LabIcon({
+      name: 'jupyterlab-kernel-usage:icon',
+      svgstr: tachometer
+    });
     this.title.closable = true;
     const widget = new KernelUsageWidget({
       widgetAdded: props.widgetAdded,

src/svg.d.ts

@@ -0,0 +1,4 @@
+declare module '*.svg' {
+  const value: string;
+  export default value;
+}