The .desktop file used a named icon (Icon=io.github.HakanSeven12.OpenCadStudio)
but the icon file was never written to the XDG icon theme directory, so file
managers and the "Open with" picker fell back to a generic blank document icon.
install_icon() now writes assets/logo.svg (embedded at compile time) to
~/.local/share/icons/hicolor/scalable/apps/{APP_ID}.svg alongside the
.desktop file, and runs gtk-update-icon-cache so the change is picked up
immediately. The write is skipped when the on-disk file is already identical.
https://claude.ai/code/session_01DFVSKgViFaxEjZD2KsTdtt
73cb0b7e21