Dev OS v0.3.4

Material Icon Theme is now bundled for files and folders in Dev OS.

• 836 SVG icons and 4,484 associations from Material Icon Theme 5.39.0, pinned to upstream commit dd1547babd192e3a307d8acfb2325306b6e89e4d.
• Files grid/list, folder shortcuts, Quick Open, and Editor tabs/breadcrumbs use the new icons. Exact filenames take priority over compound and simple extensions; folders such as src and node_modules have specific icons.
• Settings → Theme icons → Material file and folder icons switches between Material and GTK file icons. Desktop controls and application icons continue using the selected GTK theme.
• Icons work offline and ship with upstream MIT license and source metadata. Clone variants use their base SVG without color transformations.
• Includes configurable Editor file associations, settings JSON editing, and the Use latest version session switch.

Validation: build/type checks and configuration, extension, updater and Store integration tests; 9 native React GTK tests and 25 desktop UI tests, including loading and rendering bundled SVG icons in GTK, live theme switching, and complete Wayland session shutdown.

Install through Settings → Updates, save your work, then select Use latest version and confirm. Built-in desktop apps close during the shell restart. Sessions older than v0.3.1 need a first manual restart with .\dev.ps1 updated on Windows/WSL or bin/dev-os-updated-session --nested on Linux.