This new picker includes all the characters you usually need for Arabic, Persian and Urdu. It is a subset of the existing Arabic Block picker, which has many more characters to choose from that only get in the way most of the time when dealing with the aforementioned languages.
The default shows all characters as images. Characters are arranged so that similar looking characters are together.
I also added clickable images for things like RLM, LRM, ZWNJ, etc. These will be making appearances throughout the pickers as I roll out the new look and feel.