The later seems to be the default for some reason but does not support dark mode (or breaks when dark mode is enabled). Use the "Modern" style instead, and also set a smaller default width while at it. Note that the style is a QWizard concept and not QTIFW specific. The only related upstream issue I found was https://bugreports.qt.io/browse/QTBUG-123853 Fixes #84
MSYS2 Installer
Nightly build
https://github.com/msys2/msys2-installer/releases/tag/nightly-x86_64
CLI Usage examples
Installing the GUI installer via the CLI to C:\msys64:
.\msys2-x86_64-latest.exe in --confirm-command --accept-messages --root C:/msys64
Uninstalling an existing installation in C:\msys64 via the CLI:
C:\msys64\uninstall.exe pr --confirm-command
Installing the self extracting archive to C:\msys64:
.\msys2-base-x86_64-latest.sfx.exe -y -oC:\
FAQ
What's the difference between the installer and the archives?
The installer provides some additional features such as installing shortcuts, registering an uninstaller, a GUI for selecting the installation path and automatically running a login shell at the end to initialize the MSYS2 environment.
If you unpack the archives and run a login shell once, you will get a functionally equivalent MSYS2 installation.
What is contained in the installer/archives?
It contains the base package and all its dependencies. You can list the contained packages using: pactree base -lu | sort
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