Hi!
First, a little introduction: I've contributed to the content and the software of Wikimedia projects for more than 20 years, especially in the area of localization. I'm one of the administrators of translatewiki. I've made some minor contributions to the Commons app over the years—mostly things like fixing spelling errors in translatable messages.
Recently, I've wanted to learn more about Android development and to try to fix some more substantial bugs in the app. One of the things I'm doing now is auditing all the ~800 translatable messages—completing the documentation ("qq") of existing ones, finding and removing unused ones, etc.
There's one message that I find particularly puzzling: "Add image to Wikipedia" (<string name="add_picture_to_wikipedia_article_title">). Where does it appear? I could find it in the code, but I can't find it in the actual app. It is supposed to be shown when a "Wikipedia icon" is clicked, but where is this Wikipedia icon?
Thanks!
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Amir Elisha Aharoni · אָמִיר אֱלִישָׁע אַהֲרוֹנִי
http://aharoni.wordpress.com“We're living in pieces,
I want to live in peace.” – T. Moore