diff --git a/Helium-dark/gtk-3.0/install-dark-theme.sh b/Helium-dark/gtk-3.0/install-dark-theme.sh
deleted file mode 100644
index 227f3ca..0000000
--- a/Helium-dark/gtk-3.0/install-dark-theme.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/bin/sh
-set -eu
-
-theme_dir="${MESON_INSTALL_DESTDIR_PREFIX}/$1"
-project_name="$2"
-
-cd "$3"
-
-install -m755 -d "${theme_dir}"
-for ver in gtk-3.0; do
-  install -m755 -d "${theme_dir}/${ver}"
-  ln -sf "../../${project_name}/${ver}/gtk-dark.css" "${theme_dir}/${ver}/gtk.css"
-  cp -r "${project_name}/${ver}/gtk-dark.css" "${theme_dir}/${ver}/gtk-dark.css"
-done
diff --git a/Helium-dark/gtk-3.0/meson.build b/Helium-dark/gtk-3.0/meson.build
deleted file mode 100644
index 55e2e5c..0000000
--- a/Helium-dark/gtk-3.0/meson.build
+++ /dev/null
@@ -1,2 +0,0 @@
-meson.add_install_script('install-dark-theme.sh', theme_dir, meson.project_name(), meson.project_build_root())
-gtk3_dark_dir = join_paths(theme_dir, 'gtk-3.0')
\ No newline at end of file
diff --git a/Helium-dark/gtk-4.0/assets/bullet-symbolic.svg b/Helium-dark/gtk-4.0/assets/bullet-symbolic.svg
deleted file mode 100644
index f359a70..0000000
--- a/Helium-dark/gtk-4.0/assets/bullet-symbolic.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline"><path d="M388 342c-2.207 0-4 1.793-4 4s1.793 4 4 4c2.208 0 4-1.793 4-4s-1.792-4-4-4z" style="color:#bebebe;font-style:normal;font-variant:normal;font-weight:400;font-stretch:normal;font-size:medium;line-height:normal;font-family:'Andale Mono';text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;letter-spacing:normal;word-spacing:normal;text-transform:none;direction:ltr;text-anchor:start;display:inline;overflow:visible;visibility:visible;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:2.389;marker:none" transform="translate(-381 -339)"/></g></svg>
\ No newline at end of file
diff --git a/Helium-dark/gtk-4.0/assets/bullet-symbolic.symbolic.png b/Helium-dark/gtk-4.0/assets/bullet-symbolic.symbolic.png
deleted file mode 100644
index 8e6925a..0000000
Binary files a/Helium-dark/gtk-4.0/assets/bullet-symbolic.symbolic.png and /dev/null differ
diff --git a/Helium-dark/gtk-4.0/assets/bullet@2-symbolic.symbolic.png b/Helium-dark/gtk-4.0/assets/bullet@2-symbolic.symbolic.png
deleted file mode 100644
index e9df425..0000000
Binary files a/Helium-dark/gtk-4.0/assets/bullet@2-symbolic.symbolic.png and /dev/null differ
diff --git a/Helium-dark/gtk-4.0/assets/check-symbolic.svg b/Helium-dark/gtk-4.0/assets/check-symbolic.svg
deleted file mode 100644
index 27c620d..0000000
--- a/Helium-dark/gtk-4.0/assets/check-symbolic.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline;opacity:1"><path style="color:#000;display:inline;fill:#bebebe;fill-opacity:1;stroke-linecap:round;-inkscape-stroke:none" d="M414.145 341.9a1.25 1.25 0 0 0-1.766.092l-5.68 6.305-2.881-2.909a1.25 1.25 0 0 0-1.766 1.77l4.743 4.768 7.442-8.262a1.25 1.25 0 0 0-.092-1.764z" transform="translate(-401 -339)"/></g></svg>
\ No newline at end of file
diff --git a/Helium-dark/gtk-4.0/assets/check-symbolic.symbolic.png b/Helium-dark/gtk-4.0/assets/check-symbolic.symbolic.png
deleted file mode 100644
index 9144bcd..0000000
Binary files a/Helium-dark/gtk-4.0/assets/check-symbolic.symbolic.png and /dev/null differ
diff --git a/Helium-dark/gtk-4.0/assets/check@2-symbolic.symbolic.png b/Helium-dark/gtk-4.0/assets/check@2-symbolic.symbolic.png
deleted file mode 100644
index c0baa3c..0000000
Binary files a/Helium-dark/gtk-4.0/assets/check@2-symbolic.symbolic.png and /dev/null differ
diff --git a/Helium-dark/gtk-4.0/assets/dash-symbolic.svg b/Helium-dark/gtk-4.0/assets/dash-symbolic.svg
deleted file mode 100644
index de3638d..0000000
--- a/Helium-dark/gtk-4.0/assets/dash-symbolic.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline"><path style="color:#000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000;solid-opacity:1;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:4;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate" d="M407 367h8c1.108 0 2 .892 2 2s-.892 2-2 2h-8c-1.108 0-2-.892-2-2s.892-2 2-2z" transform="translate(-404 -362)"/></g></svg>
\ No newline at end of file
diff --git a/Helium-dark/gtk-4.0/assets/dash-symbolic.symbolic.png b/Helium-dark/gtk-4.0/assets/dash-symbolic.symbolic.png
deleted file mode 100644
index 3afcfd6..0000000
Binary files a/Helium-dark/gtk-4.0/assets/dash-symbolic.symbolic.png and /dev/null differ
diff --git a/Helium-dark/gtk-4.0/assets/dash@2-symbolic.symbolic.png b/Helium-dark/gtk-4.0/assets/dash@2-symbolic.symbolic.png
deleted file mode 100644
index 9cb5994..0000000
Binary files a/Helium-dark/gtk-4.0/assets/dash@2-symbolic.symbolic.png and /dev/null differ
diff --git a/Helium-dark/gtk-4.0/assets/devel-symbolic.svg b/Helium-dark/gtk-4.0/assets/devel-symbolic.svg
deleted file mode 100644
index 14843f0..0000000
--- a/Helium-dark/gtk-4.0/assets/devel-symbolic.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg width="60" height="47" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"><path id="a" style="fill:#000;fill-opacity:1;stroke-width:27.955;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:.482318;stop-color:#000" d="M0 0h29.88l49.875 47L32.637 3l46.185 44L31.703 3l46.185 44L30.769 3l46.185 44L29.836 3 76.02 47 28.902 3l46.185 44L27.968 3l46.185 44L27.034 3 73.22 47 26.101 3l46.184 44L25.167 3l46.185 44L24.233 3l46.185 44L23.299 3l46.185 44L22.366 3 68.55 47 21.432 3l46.185 44L20.498 3l46.185 44L19.564 3 65.75 47 18.63 3l46.185 44L17.697 3l46.185 44L16.763 3l46.185 44L15.829 3l46.185 44L14.895 3 61.08 47 13.962 3l46.185 44L13.028 3l46.185 44L12.094 3 58.28 47 11.16 3l46.185 44L10.227 3l46.185 44L9.292 3l46.186 44L8.359 3l46.185 44L7.425 3 53.61 47 6.492 3l46.185 44L5.557 3l46.186 44L4.624 3 50.81 47 3.69 3l46.185 44Z"/><use xlink:href="#a" transform="translate(-59.875)" width="100%" height="100%"/></svg>
\ No newline at end of file
diff --git a/Helium-dark/gtk-4.0/install-dark-theme.sh b/Helium-dark/gtk-4.0/install-dark-theme.sh
deleted file mode 100755
index 3260da6..0000000
--- a/Helium-dark/gtk-4.0/install-dark-theme.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/bin/sh
-set -eu
-
-theme_dir="${MESON_INSTALL_DESTDIR_PREFIX}/$1"
-project_name="$2"
-
-cd "$3"
-
-install -m755 -d "${theme_dir}"
-for ver in gtk-4.0; do
-  install -m755 -d "${theme_dir}/${ver}"
-  ln -sf "../../${project_name}/${ver}/gtk-dark.css" "${theme_dir}/${ver}/gtk.css"
-  ln -sf "../../${project_name}/${ver}/assets" "${theme_dir}/${ver}/assets"
-  # For the new dark theme switcher in GNOME 42+
-  cp -r "${project_name}/${ver}/gtk-dark.css" "${theme_dir}/${ver}/gtk-dark.css"
-done
diff --git a/Helium-dark/gtk-4.0/meson.build b/Helium-dark/gtk-4.0/meson.build
deleted file mode 100644
index faa8cd7..0000000
--- a/Helium-dark/gtk-4.0/meson.build
+++ /dev/null
@@ -1,2 +0,0 @@
-# CSS and assets are just symlinks to the light themes as they are not modified
-meson.add_install_script('install-dark-theme.sh', theme_dir, meson.project_name(), meson.project_build_root())
diff --git a/Helium-dark/meson.build b/Helium-dark/meson.build
deleted file mode 100644
index 4e746c8..0000000
--- a/Helium-dark/meson.build
+++ /dev/null
@@ -1,17 +0,0 @@
-theme_dir = join_paths(get_option('datadir'), 'themes', meson.project_name()+'-dark')
-
-conf_data = configuration_data()
-conf_data.set('ThemeName', meson.project_name())
-conf_data.set('VariantThemeName', meson.project_name()+'-dark')
-configure_file(input : '../index.theme.in',
-               output : 'index.theme',
-               configuration : conf_data,
-               install_dir: theme_dir)
-
-if get_option('gtk3')
-  subdir('gtk-3.0')
-endif
-
-if get_option('gtk4')
-  subdir('gtk-4.0')
-endif
diff --git a/Helium/gtk-3.0/widgets/_headerbar.scss b/Helium/gtk-3.0/widgets/_headerbar.scss
index 9604f5f..b2905ed 100644
--- a/Helium/gtk-3.0/widgets/_headerbar.scss
+++ b/Helium/gtk-3.0/widgets/_headerbar.scss
@@ -394,7 +394,7 @@ decoration {
 
   // server-side decorations as used by mutter
   .ssd & { background: $headerbar_bg_color; }
-  .ssd &:backdrop { background: $headerbar_backdrop_color; }
+  .ssd &:backdrop { background: $headerbar_bg_color; color: transparentize(white, 0.66); }
 
   .csd.popup & {
     border-radius: $menu_radius;
diff --git a/Helium/gtk-4.0/widgets/_window.scss b/Helium/gtk-4.0/widgets/_window.scss
index 90f8269..fcdb029 100644
--- a/Helium/gtk-4.0/widgets/_window.scss
+++ b/Helium/gtk-4.0/widgets/_window.scss
@@ -2,6 +2,7 @@ window {
   border-width: 0px;
 
   &.csd {
+    background: bg-color(1);
     box-shadow: shadow(5),
                 0 0 0 1px rgba(black, 0.1);
     margin: 0px;
@@ -11,6 +12,7 @@ window {
     outline-offset: -1px;
 
     &:backdrop {
+      background: bg-color(0);
       // The first transparent is to avoid jumping
       box-shadow: 0 6px 30px 5px transparent,
                   shadow(3),
diff --git a/meson.build b/meson.build
index 7a41097..069222f 100644
--- a/meson.build
+++ b/meson.build
@@ -5,8 +5,4 @@ project('Helium',
 
 sass = find_program('sass')
 
-subdir('Helium')
-
-if get_option('dark')
-    subdir('Helium-dark')
-endif
+subdir('Helium')
\ No newline at end of file