diff --git a/Dist/launch-scripts.nix b/Dist/launch-scripts.nix
index 04b56535a8..c125bd0271 100644
--- a/Dist/launch-scripts.nix
+++ b/Dist/launch-scripts.nix
@@ -89,6 +89,7 @@
 				fixed by adding `${pkgs.gtk2-x11.out}/lib` to `$LD_LIBRARY_PATH`
 				we're now in Adwaita (light) instead of ugly beige!
 				this does add a new warning to stderr though: `Unable to locate theme engine in module_path: "adwaita"`
+					fixed by adding `${pkgs.gnome3.gnome-themes-extra}/lib/gtk-2.0` to `$GTK_PATH`
 			sadly, it still doesn't seem to respect `$GTK_RC_FILES` or even `$GTK_THEME` :(
 		*/}ldLibPath="$BIZHAWK_INT_SYSLIB_PATH:${lib.makeLibraryPath bizhawkAssemblies.buildInputs}"
 		if [ -z "$LD_LIBRARY_PATH" ]; then
@@ -96,6 +97,11 @@
 		else
 			export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$ldLibPath"
 		fi
+		if [ -z "$GTK_PATH" ]; then
+			export GTK_PATH='${bizhawkAssemblies.gnome-themes-extra}/lib/gtk-2.0'
+		else
+			export GTK_PATH="${bizhawkAssemblies.gnome-themes-extra}/lib/gtk-2.0:$GTK_PATH"
+		fi
 		${if profileManagedCalls == false then "" else ''printf "Will write profiling results to %s/*.mlpd\n" "$PWD"
 		''}${if bizhawkAssemblies.hawkSourceInfo.hasAssemblyResolveHandler then "" else ''export MONO_PATH="$BIZHAWK_HOME/dll/nlua:$BIZHAWK_HOME/dll"
 		''}${lib.optionalString (!debugPInvokes) "# "}export MONO_LOG_LEVEL=debug MONO_LOG_MASK=dll # pass `--arg debugPInvokes true` to nix-build to enable
diff --git a/Dist/packages.nix b/Dist/packages.nix
index 6e753d69b5..abbcbadc94 100644
--- a/Dist/packages.nix
+++ b/Dist/packages.nix
@@ -16,6 +16,7 @@
 # makedeps
 , git
 # rundeps
+, gnome-themes-extra
 , gtk2-x11
 , libgdiplus
 , libGL
@@ -81,7 +82,7 @@
 		hawkSourceInfo = populateHawkSourceInfo hawkSourceInfo';
 		extraManagedDeps = hawkSourceInfo.extraManagedDeps or buildExtraManagedDepsFor hawkSourceInfo;
 	in buildDotnetModule (lib.fix (finalAttrs: { # proper `finalAttrs` not supported >:(
-		inherit doCheck mono;
+		inherit doCheck gnome-themes-extra mono;
 		inherit (hawkSourceInfo) __contentAddressed dotnet-sdk nugetDeps src version;
 		pname = "BizHawk";
 		isLocalBuild = lib.hasSuffix "-local" finalAttrs.version;
@@ -175,7 +176,7 @@
 		passthru = {
 			inherit extraManagedDeps # could use this to backport changes to ExternalProjects? IDK
 				hawkSourceInfo; # simple way to override `nugetDeps` for patching: `buildAssembliesFor (bizhawkAssemblies-latest.hawkSourceInfo // { nugetDeps = /*...*/; })`
-			inherit (finalAttrs) mono;
+			inherit (finalAttrs) gnome-themes-extra mono;
 #			extraUnmanagedDeps = buildUnmanagedDepsFor hawkSourceInfo; # this will override the output of the same name, example: `buildEmuHawkInstallableFor { bizhawkAssemblies = bizhawkAssemblies-latest // { extraUnmanagedDeps = /*...*/; }; }`
 			# can similarly override `assets` output, only used by launch script to populate `BIZHAWK_DATA_HOME` if the dir doesn't exist at runtime,
 			# and `waterboxCores` output, which holds just the Waterbox cores, as the name suggests
diff --git a/default.nix b/default.nix
index f2e208eb65..bf57ad7435 100644
--- a/default.nix
+++ b/default.nix
@@ -38,6 +38,7 @@ in {
 , git ? pkgs.gitMinimal # only when building from-CWD (`-local`)
 # rundeps
 , coreutils ? pkgs.coreutils
+, gnome-themes-extra ? pkgs.gnome3.gnome-themes-extra
 , gtk2-x11 ? pkgs.gtk2-x11
 , kate ? pkgs.kate.overrideAttrs (oldAttrs: {
 	patches = (oldAttrs.patches or []) ++ [ (fetchpatch {
@@ -111,7 +112,7 @@ in {
 			buildDotnetModule fetchpatch fetchzip hardLinkJoin launchScriptsFor makeDesktopItem
 				releaseTagSourceInfos runCommand symlinkJoin writeShellScriptBin
 			git
-			gtk2-x11 libgdiplus libGL lua openal SDL2 udev zstd
+			gnome-themes-extra gtk2-x11 libgdiplus libGL lua openal SDL2 udev zstd
 			buildConfig doCheck extraDefines extraDotnetBuildFlags;
 		mono = if mono != null
 			then mono # allow older Mono if set explicitly