diff --git a/change_color.sh b/change_color.sh
new file mode 100755
index 0000000..81d12e9
--- /dev/null
+++ b/change_color.sh
@@ -0,0 +1,297 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1090
+#set -x
+set -ueo pipefail
+
+SRC_PATH="$(readlink -f "$(dirname "$0")")"
+
+darker() {
+	"$SRC_PATH/scripts/darker.sh" "$@"
+}
+mix() {
+	"$SRC_PATH/scripts/mix.sh" "$@"
+}
+is_dark() {
+	hexinput="$(tr '[:lower:]' '[:upper:]' <<< "$1")"
+	half_darker="$(darker "$hexinput" 88)"
+	[[ "$half_darker" == "000000" ]]
+}
+
+
+print_usage() {
+	echo "usage: $0 [-o OUTPUT_THEME_NAME] [-a AUTOGEN_OPTS] PATH_TO_PRESET"
+	echo
+	echo "examples:"
+	# shellcheck disable=SC2028 # This is meant to be usage text.
+	echo "	$0 --output my-theme-name <(echo -e \"BG=d8d8d8\\nFG=101010\\nMENU_BG=3c3c3c\\nMENU_FG=e6e6e6\\nSEL_BG=ad7fa8\\nSEL_FG=ffffff\\nTXT_BG=ffffff\\nTXT_FG=1a1a1a\\nBTN_BG=f5f5f5\\nBTN_FG=111111\\n\")"
+	echo "	$0 ../colors/retro/twg"
+	echo "	$0 --autogen-opts '--disable-cinnamon --disable-gnome-shell' ../colors/retro/clearlooks"
+	exit 1
+}
+
+AUTOGEN_OPTS=""
+
+while [[ "$#" -gt 0 ]]; do
+	case "$1" in
+		-o|--output)
+			OUTPUT_THEME_NAME="$2"
+			shift
+			;;
+		-d|--hidpi)
+			OPTION_GTK2_HIDPI="$2"
+			shift
+			;;
+		-a|--autogen-opts)
+			AUTOGEN_OPTS="${2}"
+			shift
+		;;
+		*)
+			if [[ "$1" == -* ]] || [[ "${THEME-}" ]]; then
+				echo "unknown option $1"
+				print_usage
+				exit 2
+			fi
+			THEME="$1"
+			;;
+	esac
+	shift
+done
+
+if [[ -z "${THEME:-}" ]]; then
+	print_usage
+fi
+
+OPTION_GTK2_HIDPI=$(tr '[:upper:]' '[:lower:]' <<< "${OPTION_GTK2_HIDPI-False}")
+export OPTION_GTK2_HIDPI
+
+
+if [[ "$THEME" == */* ]] || [[ "$THEME" == *.* ]]; then
+	source "$THEME"
+	THEME=$(basename "$THEME")
+else
+	if [[ -f "$SRC_PATH/../colors/$THEME" ]]; then
+		source "$SRC_PATH/../colors/$THEME"
+	else
+		echo "Theme '$THEME' not found"
+		exit 1
+	fi
+fi
+if [[ $(date +"%m%d") = "0401" ]] && grep -q "no-jokes" <<< "$*"; then
+	echo -e "\\n\\nError patching uxtheme.dll\\n\\n"
+	ACCENT_BG=000000 BG=C0C0C0 BTN_BG=C0C0C0 BTN_FG=000000 FG=000000
+	HDR_BTN_BG=C0C0C0 HDR_BTN_FG=000000 MENU_BG=C0C0C0
+	MENU_FG=000000 SEL_BG=000080 SEL_FG=FFFFFF TXT_BG=FFFFFF TXT_FG=000000
+fi
+
+ARC_TRANSPARENCY=$(tr '[:upper:]' '[:lower:]' <<< "${ARC_TRANSPARENCY-True}")
+ARC_WIDGET_BORDER_COLOR=${ARC_WIDGET_BORDER_COLOR-$(mix ${BG} ${FG} 0.75)}
+
+ACCENT_BG=${ACCENT_BG-$SEL_BG}
+HDR_BTN_BG=${HDR_BTN_BG-$BTN_BG}
+# Not implemented yet:
+HDR_BTN_FG=${HDR_BTN_FG-$BTN_FG}
+WM_BORDER_FOCUS=${WM_BORDER_FOCUS-$SEL_BG}
+WM_BORDER_UNFOCUS=${WM_BORDER_UNFOCUS-$MENU_BG}
+SPACING=${SPACING-3}
+GRADIENT=${GRADIENT-0}
+ROUNDNESS=${ROUNDNESS-2}
+ROUNDNESS_GTK2_HIDPI=$(( ROUNDNESS * 2 ))
+
+TERMINAL_COLOR1=${TERMINAL_COLOR1:-F04A50}
+TERMINAL_COLOR3=${TERMINAL_COLOR3:-F08437}
+TERMINAL_COLOR4=${TERMINAL_COLOR4:-1E88E5}
+TERMINAL_COLOR5=${TERMINAL_COLOR5:-E040FB}
+TERMINAL_COLOR9=${TERMINAL_COLOR9:-DD2C00}
+TERMINAL_COLOR10=${TERMINAL_COLOR10:-00C853}
+TERMINAL_COLOR11=${TERMINAL_COLOR11:-FF6D00}
+TERMINAL_COLOR12=${TERMINAL_COLOR12:-66BB6A}
+
+INACTIVE_FG=$(mix "$FG" "$BG" 0.75)
+INACTIVE_BG=$(mix "$BG" "$FG" 0.75)
+INACTIVE_MENU_FG=$(mix "$MENU_FG" "$MENU_BG" 0.75)
+INACTIVE_MENU_BG=$(mix "$MENU_BG" "$MENU_FG" 0.75)
+INACTIVE_TXT_FG=$(mix "$TXT_FG" "$TXT_BG" 0.75)
+INACTIVE_TXT_BG=$(mix "$TXT_BG" "$BG" 0.75)
+
+OUTPUT_THEME_NAME=${OUTPUT_THEME_NAME-oomox-arc-$THEME}
+DEST_PATH="$HOME/.themes/${OUTPUT_THEME_NAME/\//-}"
+
+if [[ "$SRC_PATH" == "$DEST_PATH" ]]; then
+	echo "can't do that"
+	exit 1
+fi
+
+
+tempdir=$(mktemp -d)
+post_clean_up() {
+	rm -r "$tempdir"
+}
+trap post_clean_up EXIT SIGHUP SIGINT SIGTERM
+cp -r "$SRC_PATH/"* "$tempdir/"
+cd "$tempdir"
+
+
+echo "== Converting theme into template..."
+
+PATHLIST=(
+	'./common/'
+)
+for FILEPATH in "${PATHLIST[@]}"; do
+		find "$FILEPATH" -type f -exec sed -i'' \
+			-e 's/#cfd6e6/%ARC_WIDGET_BORDER_COLOR%/gI' \
+			-e 's/#f5f6f7/%BG%/gI' \
+			-e 's/#3b3e45/%FG%/gI' \
+			-e 's/#FFFFFF/%TXT_BG%/gI' \
+			-e 's/#3b3e45/%TXT_FG%/gI' \
+			-e 's/#5294e2/%SEL_BG%/gI' \
+			-e 's/#fcfdfd/%BTN_BG%/gI' \
+			-e 's/#e7e8eb/%MENU_BG%/gI' \
+			-e 's/#2f343f/%MENU_BG%/gI' \
+			-e 's/#D3DAE3/%MENU_FG%/gI' \
+			-e 's/#fbfcfc/%INACTIVE_BG%/gI' \
+			-e 's/#a9acb2/%INACTIVE_FG%/gI' \
+			-e 's/#e2e7ef/%INACTIVE_FG%/gI' \
+			-e 's/#fbfcfc/%INACTIVE_TXT_BG%/gI' \
+			-e 's/#F04A50/%TERMINAL_COLOR1%/gI' \
+			-e 's/#F08437/%TERMINAL_COLOR3%/gI' \
+			-e 's/#FC4138/%TERMINAL_COLOR9%/gI' \
+			-e 's/#73d216/%TERMINAL_COLOR10%/gI' \
+			-e 's/#F27835/%TERMINAL_COLOR11%/gI' \
+			-e 's/#4DADD4/%TERMINAL_COLOR12%/gI' \
+			-e 's/#353945/%MENU_BG2%/gI' \
+			-e 's/Name=Arc/Name=%OUTPUT_THEME_NAME%/g' \
+			-e 's/#f46067/%TERMINAL_COLOR9%/gI' \
+			-e 's/#cc575d/%TERMINAL_COLOR9%/gI' \
+			-e 's/#f68086/%TERMINAL_COLOR9_LIGHTER%/gI' \
+			-e 's/#d7787d/%TERMINAL_COLOR9_LIGHTER%/gI' \
+			-e 's/#f13039/%TERMINAL_COLOR9_DARKER%/gI' \
+			-e 's/#be3841/%TERMINAL_COLOR9_DARKER%/gI' \
+			-e 's/#F8F8F9/%MENU_FG%/gI' \
+			-e 's/#fdfdfd/%MENU_FG%/gI' \
+			-e 's/#454C5C/%MENU_FG%/gI' \
+			-e 's/#D1D3DA/%MENU_FG%/gI' \
+			-e 's/#262932/%MENU_FG%/gI' \
+			-e 's/#90949E/%MENU_FG%/gI' \
+			-e 's/#90939B/%MENU_FG%/gI' \
+			-e 's/#B6B8C0/%INACTIVE_MENU_FG%/gI' \
+			-e 's/#666A74/%INACTIVE_MENU_FG%/gI' \
+			-e 's/#7A7F8B/%INACTIVE_MENU_FG%/gI' \
+			-e 's/#C4C7CC/%INACTIVE_MENU_FG%/gI' \
+			-e 's/#BAC3CF/%MENU_FG%/gI' \
+			-e 's/#4B5162/%TXT_FG%/gI' \
+			-e 's/#AFB8C5/%MENU_FG%/gI' \
+			-e 's/#404552/%MENU_BG%/gI' \
+			-e 's/#383C4A/%MENU_BG%/gI' \
+			-e 's/#5c616c/%FG%/gI' \
+			-e 's/#d3d8e2/%SEL_BG%/gI' \
+			{} \; ;
+done
+
+#Not implemented yet:
+			#-e 's/%HDR_BTN_FG%/'"$HDR_BTN_FG"'/g' \
+			#-e 's/%WM_BORDER_FOCUS%/'"$WM_BORDER_FOCUS"'/g' \
+			#-e 's/%WM_BORDER_UNFOCUS%/'"$WM_BORDER_UNFOCUS"'/g' \
+			#-e 's/%SPACING%/'"$SPACING"'/g' \
+			#-e 's/%INACTIVE_TXT_FG%/'"$INACTIVE_TXT_FG"'/g' \
+			#-e 's/%INACTIVE_MENU_FG%/'"$INACTIVE_MENU_FG"'/g' \
+			#-e 's/#01A299/%ACCENT_BG%/g' \
+
+#sed -i -e 's/^$material_radius: .px/$material_radius: '"$ROUNDNESS"'px/g' ./src/_sass/gtk/_variables.scss
+
+if [[ "${DEBUG:-}" ]]; then
+	echo "You can debug TEMP DIR: $tempdir, press [Enter] when finished"
+	read -r answer
+	if [[ "${answer}" = "q" ]] ; then
+		exit 125
+	fi
+fi
+
+for template_file in $(find ./common -name '*.thpl') ; do
+	cat ${template_file} >> ${template_file::-5}
+done
+
+ASSETS_FILES=(
+	'./common/gtk-2.0/assets.svg'
+	'./common/gtk-2.0/assets-dark.svg'
+	'./common/gtk-3.0/3.18/assets.svg'
+	'./common/gtk-3.0/3.20/assets.svg'
+)
+for assets_file in "${ASSETS_FILES[@]}"; do
+	sed -i'' -e 's/%SEL_BG%/%ACCENT_BG%/g' ${assets_file}
+done
+
+echo "== Filling the template with the new colorscheme..."
+for FILEPATH in "${PATHLIST[@]}"; do
+	find "$FILEPATH" -type f -exec sed -i'' \
+		-e 's/%ARC_WIDGET_BORDER_COLOR%/#'"$ARC_WIDGET_BORDER_COLOR"'/g' \
+		-e 's/%BG%/#'"$BG"'/g' \
+		-e 's/%BG2%/#'"$(darker $BG)"'/g' \
+		-e 's/%FG%/#'"$FG"'/g' \
+		-e 's/%ACCENT_BG%/#'"$ACCENT_BG"'/g' \
+		-e 's/%SEL_BG%/#'"$SEL_BG"'/g' \
+		-e 's/%SEL_BG2%/#'"$(darker $SEL_BG -20)"'/g' \
+		-e 's/%SEL_FG%/#'"$SEL_FG"'/g' \
+		-e 's/%TXT_BG%/#'"$TXT_BG"'/g' \
+		-e 's/%TXT_FG%/#'"$TXT_FG"'/g' \
+		-e 's/%MENU_BG%/#'"$MENU_BG"'/g' \
+		-e 's/%MENU_BG2%/#'"$(mix $MENU_BG $BG 0.85)"'/g' \
+		-e 's/%MENU_FG%/#'"$MENU_FG"'/g' \
+		-e 's/%BTN_BG%/#'"$BTN_BG"'/g' \
+		-e 's/%BTN_FG%/#'"$BTN_FG"'/g' \
+		-e 's/%HDR_BTN_BG%/#'"$HDR_BTN_BG"'/g' \
+		-e 's/%HDR_BTN_FG%/#'"$HDR_BTN_FG"'/g' \
+		-e 's/%WM_BORDER_FOCUS%/#'"$WM_BORDER_FOCUS"'/g' \
+		-e 's/%WM_BORDER_UNFOCUS%/#'"$WM_BORDER_UNFOCUS"'/g' \
+		-e 's/%SPACING%/'"$SPACING"'/g' \
+		-e 's/%INACTIVE_FG%/#'"$INACTIVE_FG"'/g' \
+		-e 's/%INACTIVE_BG%/#'"$INACTIVE_BG"'/g' \
+		-e 's/%INACTIVE_TXT_FG%/#'"$INACTIVE_TXT_FG"'/g' \
+		-e 's/%INACTIVE_TXT_BG%/#'"$INACTIVE_TXT_BG"'/g' \
+		-e 's/%INACTIVE_MENU_FG%/#'"$INACTIVE_MENU_FG"'/g' \
+		-e 's/%INACTIVE_MENU_BG%/#'"$INACTIVE_MENU_BG"'/g' \
+		-e 's/%TERMINAL_COLOR1%/#'"$TERMINAL_COLOR1"'/g' \
+		-e 's/%TERMINAL_COLOR3%/#'"$TERMINAL_COLOR3"'/g' \
+		-e 's/%TERMINAL_COLOR4%/#'"$TERMINAL_COLOR4"'/g' \
+		-e 's/%TERMINAL_COLOR5%/#'"$TERMINAL_COLOR5"'/g' \
+		-e 's/%TERMINAL_COLOR9%/#'"$TERMINAL_COLOR9"'/g' \
+		-e 's/%TERMINAL_COLOR9_DARKER%/#'"$(darker $TERMINAL_COLOR9 10)"'/g' \
+		-e 's/%TERMINAL_COLOR9_LIGHTER%/#'"$(darker $TERMINAL_COLOR9 -10)"'/g' \
+		-e 's/%TERMINAL_COLOR10%/#'"$TERMINAL_COLOR10"'/g' \
+		-e 's/%TERMINAL_COLOR11%/#'"$TERMINAL_COLOR11"'/g' \
+		-e 's/%TERMINAL_COLOR12%/#'"$TERMINAL_COLOR12"'/g' \
+		-e 's/%OUTPUT_THEME_NAME%/'"$OUTPUT_THEME_NAME"'/g' \
+		{} \; ;
+done
+
+#if [[ "$OPTION_GTK2_HIDPI" == "true" ]]; then
+	#mv ./src/gtk-2.0/main.rc.hidpi ./src/gtk-2.0/main.rc
+#fi
+#if [[ "$EXPORT_QT5CT" = 1 ]]; then
+	#config_home=${XDG_CONFIG_HOME:-"$HOME/.config"}
+	#qt5ct_colors_dir="$config_home/qt5ct/colors/"
+	#test -d "$qt5ct_colors_dir" || mkdir -p "$qt5ct_colors_dir"
+	#mv ./src/qt5ct_palette.conf "$qt5ct_colors_dir/$OUTPUT_THEME_NAME.conf"
+#fi
+
+if [[ "$ARC_TRANSPARENCY" == "false" ]]; then
+	AUTOGEN_OPTS="${AUTOGEN_OPTS} --disable-transparency"
+fi
+
+echo "== Making theme..."
+mkdir distrib
+./autogen.sh --prefix=$(readlink -e ./distrib/) --disable-light --disable-dark ${AUTOGEN_OPTS}
+make install
+echo
+
+echo
+rm -fr "${DEST_PATH}"
+if [[ "$ARC_TRANSPARENCY" == "false" ]]; then
+	mv ./distrib/share/themes/Arc-Darker-solid "${DEST_PATH}"
+else
+	mv ./distrib/share/themes/Arc-Darker "${DEST_PATH}"
+fi
+echo "== The theme was installed to ${DEST_PATH}"
+
+echo
+echo "== SUCCESS"
+exit 0
diff --git a/common/gtk-3.0/3.18/sass/_colors.scss.thpl b/common/gtk-3.0/3.18/sass/_colors.scss.thpl
new file mode 120000
index 0000000..59fa5d5
--- /dev/null
+++ b/common/gtk-3.0/3.18/sass/_colors.scss.thpl
@@ -0,0 +1 @@
+../../_colors.scss.thpl
\ No newline at end of file
diff --git a/common/gtk-3.0/3.20/sass/_colors.scss.thpl b/common/gtk-3.0/3.20/sass/_colors.scss.thpl
new file mode 120000
index 0000000..59fa5d5
--- /dev/null
+++ b/common/gtk-3.0/3.20/sass/_colors.scss.thpl
@@ -0,0 +1 @@
+../../_colors.scss.thpl
\ No newline at end of file
diff --git a/common/gtk-3.0/_colors.scss.thpl b/common/gtk-3.0/_colors.scss.thpl
new file mode 100644
index 0000000..40a3a3d
--- /dev/null
+++ b/common/gtk-3.0/_colors.scss.thpl
@@ -0,0 +1,107 @@
+// When color definition differs for dark and light variant,
+// it gets @if ed depending on $variant
+
+@function gtkopacity($c, $a) {
+  @return scale-color($c, $alpha: percentage(-1 + $a));
+}
+
+$base_color: if($variant =='light', %TXT_BG%, %MENU_BG2%);
+$base_bg_color: %BG%;
+$text_color: if($variant == 'light', %TXT_FG%, %MENU_FG%);
+$bg_color: if($variant =='light', $base_bg_color, %MENU_BG%);
+$fg_color: if($variant =='light', %FG%, %MENU_FG%);
+
+$selected_fg_color: %SEL_FG%;
+$selected_bg_color: %SEL_BG%;
+$selected_borders_color: darken($selected_bg_color, 20%);
+$borders_color: if($variant =='light', darken($bg_color,9%), darken($bg_color,6%));
+
+$link_color: if($variant == 'light', darken($selected_bg_color,10%),
+                                     lighten($selected_bg_color,20%));
+$link_visited_color: if($variant == 'light', darken($selected_bg_color,20%),
+                                     lighten($selected_bg_color,10%));
+
+$selection_mode_bg: if($transparency == 'true', transparentize($selected_bg_color, 0.05), $selected_bg_color);
+$selection_mode_fg: $selected_fg_color;
+$warning_color: %TERMINAL_COLOR11%;
+$error_color: %TERMINAL_COLOR9%;
+$warning_fg_color: white;
+$error_fg_color: white;
+$success_color: %TERMINAL_COLOR10%;
+$destructive_color: %TERMINAL_COLOR1%;
+$suggested_color: %TERMINAL_COLOR12%;
+$destructive_fg_color: white;
+$suggested_fg_color: white;
+
+$drop_target_color: %TERMINAL_COLOR3%;
+
+//insensitive state derived colors
+$insensitive_fg_color: if($variant == 'light', transparentize($fg_color, 0.45), transparentize($fg_color, 0.55));
+$insensitive_bg_color: if($variant == 'light', mix($bg_color, $base_color, 40%), lighten($bg_color, 2%));
+
+$header_bg: red;
+@if $transparency=='true' and $variant=='light' { $header_bg: transparentize(%MENU_BG%, 0.05); }
+@if $transparency=='false' and $variant=='light' { $header_bg: %MENU_BG%; }
+@if $transparency=='true' and ($variant=='dark' or $darker=='true') { $header_bg: transparentize(%MENU_BG%, 0.03); }
+@if $transparency=='false' and ($variant=='dark' or $darker=='true') { $header_bg: %MENU_BG%; }
+
+$header_bg_backdrop: if($darker == 'true' or $variant == 'dark', lighten($header_bg, 1.5%), lighten($header_bg, 3%));
+
+$header_border: if($variant == 'light' and $darker=='false', darken($header_bg, 7%), darken($header_bg, 4%));
+
+$header_fg: if($variant == 'light', saturate(transparentize($fg_color, 0.2), 10%), saturate(transparentize($fg_color, 0.2), 10%));
+$header_fg: if($darker == 'true', saturate(transparentize(%MENU_FG%, 0.2), 10%), $header_fg);
+
+$dark_sidebar_bg: if($transparency == 'true', transparentize(%MENU_BG2%, 0.05), %MENU_BG2%);
+$dark_sidebar_fg: %MENU_FG%;
+$dark_sidebar_border: if($variant == 'light', $dark_sidebar_bg, darken($dark_sidebar_bg, 5%));
+
+$osd_fg_color: $dark_sidebar_fg;
+$osd_bg_color: $dark_sidebar_bg;
+
+$osd_button_bg: transparentize(lighten($osd_bg_color, 22%), 0.6);
+$osd_button_border: transparentize(darken($osd_bg_color, 12%), 0.6);
+
+$osd_entry_bg: transparentize(lighten($osd_bg_color, 22%), 0.6);
+$osd_entry_border: transparentize(darken($osd_bg_color, 12%), 0.6);
+
+$osd_insensitive_bg_color: darken($osd_bg_color, 3%);
+$osd_insensitive_fg_color: mix($osd_fg_color, opacify($osd_bg_color, 1), 30%);
+$osd_borders_color: transparentize(black, 0.3);
+
+$panel_bg: darken($dark_sidebar_bg, 4.7%);
+$panel_fg: $dark_sidebar_fg;
+
+$entry_bg: if($variant=='light', $base_color, lighten($base_color, 0%));
+$entry_border: if($variant == 'light', %ARC_WIDGET_BORDER_COLOR%, darken($borders_color, 0%));
+
+$header_entry_bg: if($darker == 'true' or $variant == 'dark', transparentize(lighten($header_bg, 22%), 0.6), transparentize($base_color, 0.1));
+$header_entry_border: if($darker == 'true' or $variant == 'dark', transparentize(darken($header_bg, 12%), 0.6), transparentize($header_fg, 0.7));
+
+$button_bg: if($variant=='light', %BTN_BG%, %HDR_BTN_BG%);
+$button_border: $entry_border;
+
+$header_button_bg: %HDR_BTN_BG%;
+$header_button_border: if($darker == 'true' or $variant == 'dark', transparentize(darken($header_bg, 12%), 0.6), transparentize($header_fg, 0.7));
+
+//WM Buttons
+
+// Close
+$wm_button_close_bg: if($variant == 'light' and $darker == 'false', %TERMINAL_COLOR9%, %TERMINAL_COLOR9%);
+$wm_button_close_hover_bg: if($variant == 'light' and $darker == 'false', %TERMINAL_COLOR9_LIGHTER%, %TERMINAL_COLOR9_LIGHTER%);
+$wm_button_close_active_bg: if($variant == 'light' and $darker == 'false', %TERMINAL_COLOR9_DARKER%, %TERMINAL_COLOR9_DARKER%);
+
+$wm_icon_close_bg: if($variant == 'light' and $darker == 'false',%MENU_FG% , %MENU_BG%);
+
+// Minimize, Maximize
+$wm_button_hover_bg: if($variant == 'light' and $darker == 'false', %MENU_FG%, %MENU_FG%);
+$wm_button_active_bg: $selected_bg_color;
+
+$wm_button_hover_border: if($variant == 'light' and $darker == 'false', %MENU_FG%, %MENU_FG%);
+
+$wm_icon_bg: if($variant == 'light' and $darker == 'false', %MENU_FG%, %MENU_FG%);
+$wm_icon_unfocused_bg: if($variant == 'light' and $darker == 'false', %INACTIVE_MENU_FG%, %INACTIVE_MENU_FG%);
+$wm_icon_hover_bg: if($variant == 'light' and $darker == 'false', %INACTIVE_MENU_FG%, %INACTIVE_MENU_FG%);
+$wm_icon_active_bg: $selected_fg_color;
+
+/* vim: set ft=scss: */
diff --git a/scripts/darker.sh b/scripts/darker.sh
new file mode 100755
index 0000000..b9514a4
--- /dev/null
+++ b/scripts/darker.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+set -ueo pipefail
+#set -x
+
+darker_channel() {
+  value="$1"
+  light_delta="$2"
+  result="$(bc <<< "ibase=16; $value - $light_delta")"
+  if [[ "$result" -lt 0 ]]; then
+    result=0
+  fi
+  if [[ "$result" -gt 255 ]]; then
+    result=255
+  fi
+  echo "$result"
+}
+
+darker() {
+  hexinput="$(tr '[:lower:]' '[:upper:]' <<< "$1")"
+  light_delta="${2-10}"
+
+  a="$(cut -c-2 <<< "$hexinput")"
+  b="$(cut -c3-4 <<< "$hexinput")"
+  c="$(cut -c5-6 <<< "$hexinput")"
+
+  r="$(darker_channel "$a" "$light_delta")"
+  g="$(darker_channel "$b" "$light_delta")"
+  b="$(darker_channel "$c" "$light_delta")"
+
+  printf '%02x%02x%02x\n' "$r" "$g" "$b"
+}
+
+darker "$@"
diff --git a/scripts/mix.sh b/scripts/mix.sh
new file mode 100755
index 0000000..73c1950
--- /dev/null
+++ b/scripts/mix.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+set -ueo pipefail
+#set -x
+
+mix_channel() {
+  value1="$(printf '%03d' "0x$1")"
+  value2="$(printf '%03d' "0x$2")"
+  ratio="$3"
+  result="$(bc <<< "scale=0; ($value1 * 100 * $ratio + $value2 * 100 * (1 - $ratio)) / 100")"
+  if [[ "$result" -lt 0 ]]; then
+    result=0
+  elif [[ "$result" -gt 255 ]]; then
+    result=255
+  fi
+  echo "$result"
+}
+
+mix() {
+  hexinput1="$(tr '[:lower:]' '[:upper:]' <<< "$1")"
+  hexinput2="$(tr '[:lower:]' '[:upper:]' <<< "$2")"
+  ratio="${3-0.5}"
+
+  a="$(cut -c-2 <<< "$hexinput1")"
+  b="$(cut -c3-4 <<< "$hexinput1")"
+  c="$(cut -c5-6 <<< "$hexinput1")"
+  d="$(cut -c-2 <<< "$hexinput2")"
+  e="$(cut -c3-4 <<< "$hexinput2")"
+  f="$(cut -c5-6 <<< "$hexinput2")"
+
+  r="$(mix_channel "$a" "$d" "$ratio")"
+  g="$(mix_channel "$b" "$e" "$ratio")"
+  b="$(mix_channel "$c" "$f" "$ratio")"
+
+  printf '%02x%02x%02x\n' "$r" "$g" "$b"
+}
+
+mix "$@"