[GNC] 64-bit Windows nightly installer & GTK dark mode support

[Brian S]

Hi all,
I’m running GnuCash 5.13 on Windows 11 (x86 build) and trying to enable a dark GTK theme using a custom gtk.css.
I’ve learned that the current Windows build seems to bundle its own GTK runtime and ignores user CSS files (like %APPDATA%\gtk-3.0\gtk.css).
I looked through the build server at https://code.gnucash.org/builds/ but only see win32 builds — no win64 nightly or stable installers appear to be published.
Question:
Is a 64-bit Windows installer currently being produced (perhaps privately) or planned for public distribution?
If not, is the expectation that Windows users should build their own 64-bit versions using gnucash-on-windows in order to access theming features like dark mode?
Thanks for any clarification — and for all the work maintaining the Windows builds!
Best regards,
Brian S (Windows 11, GnuCash 5.13 x86)
“Please CC me on replies”