Hi there! I recently started using the Android app and notice some accessibility issues in the current 2.2.7 release. However, looking at the Trunk code, I found that this seems to be old news by now. The problems are mainly that there are missing contentDescription attributes on ImageButton elements. I created Ticket#454 and attached a first patch to give an idea. I noticed that some of the ImageButtons had a text attribute instead of contentDescription, which, if it was made for accessibility, does not yield the desired effect usually. Any hints or other feedback would be welcome!