Take the 2-minute tour ×  In the interests of fitting in with
design guidelines and not wanting to endlessly push icon pixels,
I try and use Android's1 built-in icons as much as possible.
Occasionally, that means combining two together to make a whole
new one. Mostly, it means trying to give an existing icon a new
meaning2.  On one hand, this makes sense, as the icon will
completely fit in with the look and feel of the OS. On the other
hand, this is potentially very confusing for users, as the icon
may not do what they thought it would based on its use in other
apps.  Android's most recent icon sets are simple and beautiful;
I want that simplicity and beauty in my app. They generally have
a clear meaning; I want my icons to have a clear meaning.  If an
app has many steps completed in a row, someone might make a
mistake and desire Undo. A backwards pointing arrow will make
sense, regardless of if there's one at the bottom of the screen.
If an app has a pane of information floating over the main
content window