Looks great Suggestion  1.cloud support  2. Image browsing need to support gesture  instead of 1 at a time. 3. Remove text editor  it can not auto detect encoding  have problem with large file  and never as powerful as pure text editor  which has syntax highlighting  replace  auto complete etc. If u want to enhance txt editor  try with over 1mb novels  and replace func incliding \n. We'd better have edit/view mode switch  and coding/novel text mode switch  but is it necessary?
May 23 2016