MD Viewer 1.3.3 — one-click theme, rendered default view

MD Viewer 1.3.3

The theme button now flips light ↔ dark in one click. Before it walked Auto → Light → Dark, and because “Auto” and “Dark” look identical on a dark Windows, the first click changed nothing. Files also open in the rendered view again — the last mode is no longer restored unless you enable View → Remember the last view mode.

Install: MD.Viewer-1.3.3-setup.exe (34.8 MB). Portable: mdview.exe.

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[1.3.3] — 2026-11-09

Two habits of the interface that were wrong by default.

Changed

• The theme button flips the appearance instead of cycling three modes. The old cycle went
  Auto → Light → Dark; with Windows in dark mode “Auto” and “Dark” look identical, so the first
  click changed nothing and reaching light took two clicks. The button (and Ctrl+Shift+L) now
  switches light ↔ dark in one click, the icon shows what is on screen, and a dot marks when the
  theme follows Windows. View → Theme still offers all three states.
• Files open in the rendered view. The last used mode is no longer restored on start-up — the
  viewer always opens rendered, unless --mode says otherwise. View → Remember the last view mode
  brings the old behaviour back for anyone who wants it.

Added

• --theme-clicks <n> and --scroll <px> for the screenshot tests, plus seven checks that pin the
  new defaults: rendered start-up, the remember-mode switch, --mode precedence, and that one theme
  click always changes the appearance — even from Auto.