<ul dir="auto">
<li>Electron version: 1.2.6</li>
<li>Operating system: Windows 7</li>
</ul>
<p dir="auto">In the API demos, when moving around the error dialog, it leaves a trail. Curiously, the information dialog does not leave such a trail. Furthermore, you can see that the Start Menu also left an imprint on the left side of the window!</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/4595638/16896284/b123fba2-4b54-11e6-8091-2f2603a171f7.PNG"><img src="https://cloud.githubusercontent.com/assets/4595638/16896284/b123fba2-4b54-11e6-8091-2f2603a171f7.PNG" alt="capture" style="max-width: 100%;"></a></p>
<ul dir="auto">
<li>Log on to a Windows 7 machine</li>
<li>Switch your theme to Windows Basic or Windows Classic (this has the side-effect of disabling Aero's DWM composition)</li>
<li>Launch an Electron app</li>
<li>Switch to another app window</li>
<li>The other window fails to repaint:</li>
</ul>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/1865957/7892783/3bd6c34a-060c-11e5-8746-3815d26d6590.PNG"><img src="https://cloud.githubusercontent.com/assets/1865957/7892783/3bd6c34a-060c-11e5-8746-3815d26d6590.PNG" alt="window repaint issue" style="max-width: 100%;"></a></p>
<p dir="auto">This occurs with almost every app that I've tried, so it seems like something funky with the Electron window. It may or may not require the presence of a <code class="notranslate">webview</code> tag; I haven't isolated that yet. Until now we've been advising users to switch to an Aero theme (this fixes the problem, but is undesirable for many).</p>