Envelope Back

✓ Drag & Drop
✓ Create lists for todos, as many as you like
✓ History: Cleared todos will be saved in editable text.
✓ Ctrl-Z to Undo
✓ GitHub-like contribution chart

Release Note
v 0.4.0
  - New feature: waterfall layout in drawer.
  - New feature: support auto timestamp when cleaning checked todo into history.
  - Some small UI polishing.
  - Fixed a bug that drag&drop project list glitches when lists overflow the browser window (in Safari).

v 0.3.5
  - Fixed a bug that will cause history being lost when clicking 'cleared all checked.' after editing history
v 0.3.4
  - Fixed a bug that will cause history and general settings fail to load in Chrome browser.
v 0.3.3
  - Add "contact me" and "buy me a coffee" link
v 0.3.2
  - New feature: dark mode!
  - New option: can show or hide card frame
  - Small UI adjustment
v 0.3.1
  - New feature: export/import data file. Useful for back-up or transfer data to other browsers or computers.
v 0.3.0
  - New: contribution chart
  - Fix layout bug