How do I uninstall this?
Right click on the icon in the browser toolbar and select "Remove From Chrome..."
I received a Status: 500 error trying to load my Google Photos albums. What does that mean?
This is an error on the Server that provides the photos. This is probably a very temporary issue - please try again later.
Why is the time label incorrect on my Chromebook?
If you have this problem, go to "Settings" -> "Show Advanced Settings" and in the "Date and time" section uncheck the "Set time zone automatically using your location". You will need to re-start for the change to take effect.
What do the labels on the icon mean?
No label: Screensaver is enabled and will be displayed when the computer is idle.
OFF: Screensaver is disabled.
SLP: The time is in the inactive range of the scheduler. Screensaver will not display.
PWR: The scheduler will process the keep awake settings, but the screensaver will never display
I have the Keep awake off, but my display is not sleeping. Why is that?
Other applications may be preventing the display or computer from sleeping.
On many Chrome OS devices the display will not sleep if the screensaver is running. You can use the Screensaver/Keep awake scheduling feature to control when the screensaver is displayed.
I have the Keep awake on, but my system is shutting down. Why is that?
The Keep awake features are requests to the computer and do not have to be honored. The display request is almost always honored, but the system request isn't. In particular, many PC's will put the computer to sleep if you have them set to do this.
Can you add support for using files from my local computer?
No. By default extensions are not allowed to access the local filesystem.
This extension has been built entirely with Polymer and vanilla JavaScript. Polymer treats everything as a Web Component I have never used things like AngularJS (or even JQuery) so I can't really evaluate the pros and cons of this approach. In addition, there is nothing in Polymer that prevents you from using it with these other solutions.
It is unfortunate, but the Google+ API still does not support working with photos, so the only way is with the Picasa Web API. The Chromecast photos are a snapshot in time of those used for the backdrop.
Note: This program is read only for your Google photos despite what the permissions popup says. The Picasa API does not have a read only scope.
This was my first time doing Web development and the learning curve is pretty steep. Each of these sites provides good tutorials and reference materials on the HTML-CSS-JavaScript paradigm. The first is supported by the W3C and most of the big Internet companies, but is also the least complete at this time.