While not strictly needed to run Geany, librsvg enables SVG support which might used by GTK themes.
Part of https://github.com/geany/geany/issues/3063. You can view, comment on, or merge this pull request online at:
https://github.com/geany/geany/pull/3082
-- Commit Summary --
* Windows: Bundle librsvg in installer
-- File Changes --
M scripts/gtk-bundle-from-msys2.sh (4)
-- Patch Links --
https://github.com/geany/geany/pull/3082.patch https://github.com/geany/geany/pull/3082.diff