1)  Implement ANSI CSI CU[BDPU] sequences & italic
2)  Layers & layout (e.g. for comics, zines, etc.)
3)  Implement instrumentation & unit tests, document
4)  Open and toggle a reference image in the background
5)  Client-Server or Peer-to-Peer realtime collaboration
6)  Arbitrary {format,palette}s ({4,8} bit ANSI/mIRC, etc.)
7)  Incremental auto{load,save} & {backup,restore} (needs Settings window)
8)  Composition, parametrisation & keying of tools from higher-order operators (brushes, filters, outlines, patterns & shaders) and unit tools
9)  Sprites & scripted (Python?) animation on the basis of asset traits and {composable,parametrised} patterns (metric flow, particle system, rigging, ...)

High-priority list:
1)  unit tools: arrow, {cloud,speech bubble}, curve, measure, pick, polygon, triangle, unicode
2)  text tool: a) honour RTL text flow b) navigating w/ cursor keys c) pasting text
3)  operators: erase, rotate, scale, shift, slice, tile
4)  GUI:
    a) switch to GTK
    b) replace logo w/ canvas panel in About dialogue
    c) Settings/Settings window (e.g. autosave, hide cursor on leaving window, ...)
    d) replace resize buttons w/ {-,edit box,+} buttons & lock button re: ratio (ty lol3)
    e) {copy,cut,insert from,paste}, {edit asset in new canvas,import from {canvas,object}}
5)  cleanup & refactor
6)  object tool: reset {clone,move} state on each transition to target state

vim:ff=dos tw=0