Not sure why I used to store it as images.zip. Probably just a mistake. The
code uses the images_tango.name.zip when trying to open it.

Sure, no toolbar with images is displayed currently anyway, so having this
file in the .apk is pointless, but there has been talk of reverting the
disabling of toolbars, sigh.

Change-Id: I12dfd3abe8f329d660b518f6b37904aa00423bc2