1)  Scrollbar
2)  Allow {un,re}doing resizing
3)  Don't use ^C,<colour> encoding
4)  {Copy to,Paste from} clipboard
5)  Incremental auto{load,save} & {backup,restore}
6)  Open and toggle a reference image in the background
7)  Client-Server or Peer-to-Peer realtime collaboration
8)  Arbitrary {format,palette}s ({4,8} bit ANSI/mIRC, etc.)
9)  Hotkey & graphical interfaces to {composed,parametrised} tools
10) Layer, layout (e.g. for comics, zines, etc.) & {re,un}do canvas traits
11) Im- and exporting from/to ANSI, Blender, GIF, HTML, mIRC, Pastebin/..., PNG, printer, SAUCE, WEBM, etc.
12) Asset management (e.g. kade, lion, etc.) & traits w/ simple linking & synchronised editing respecting layers
13) Sprites & scripted (Python?) animation on the basis of asset traits and {composable,parametrised} patterns (metric flow, particle system, rigging, ...)
14) Composition and parametrisation of tools from higher-order operators (brushes, filters, outlines, patterns & shaders) and unit tools; unit tools:
    a) geometric primitives (arrow, circle, cloud/speech bubble, curve, heart, hexagon, line, pentagon, polygon, rhombus, triangle, square, star)
    b) regions (crop, duplicate, erase, fill, invert, measure, pick, rotate, scale, select, shift, slice, tile, translate)
    c) text (edit, Unicode sets)

vim:tw=0