switch between global dark and light themes (super + F6)

.config/bspwm/bspwmrc

@@ -1,7 +1,6 @@
 #! /bin/sh
 
-sxhkd &
-
+xdo kill $(xdo id -N Polybar)
 i=0
 monitors=$(bspc query -M --names)
 for monitor in $monitors; do
@@ -20,11 +19,9 @@ else
 fi
 
 bspc config border_width         4
-bspc config window_gap           8
+bspc config window_gap           12
 
-bspc config normal_border_color '#808080'
-bspc config focused_border_color '#3585ce'
-bspc config presel_feedback_color '#3585ce'
+sh ~/.config/bspwm/commands.sh dark-colors
 
 bspc config split_ratio          0.50
 bspc config single_monocle       true

.config/bspwm/commands.sh

@@ -0,0 +1,71 @@
+#!/bin/sh
+
+CMD="$1"
+shift
+
+is_light() {
+    bspc config focused_border_color | grep '#068c70' > /dev/null
+}
+
+if [ "$CMD" = switch-colors ]; then
+    if is_light; then
+	CMD=dark-colors
+	SCHEME=dark
+    else
+	CMD=light-colors
+	SCHEME=light
+    fi
+elif is_light; then
+    SCHEME=light
+else
+    SCHEME=dark
+fi
+
+FONT=Iosevka:pixelsize=30
+if [ "$SCHEME" = light ]; then
+    ROOT_BG=#c1e6c2
+    BAR_BG=#e1e6d2
+    BAR_FG=#1a343a
+    BAR_ACTIVE=#b0decc
+    BAR_URGENT=#9b0640
+    BAR_EMPTY=#b0b0b0
+    NORMAL_BORDER=#b0b0b0
+    FOCUS_BORDER=#068c70
+    EMACS_THEME=lupan-light
+else
+    ROOT_BG=#343a1a
+    BAR_BG=#1a343a
+    BAR_FG=#f2f6e1
+    BAR_ACTIVE=#3585ce
+    BAR_URGENT=#9b0640
+    BAR_EMPTY=#808080
+    NORMAL_BORDER=#808080
+    FOCUS_BORDER=#3585ce
+    EMACS_THEME=lupan-dark-blue
+fi
+
+switch_colors() {
+    xrdb -merge <<EOF
+polybar.background: ${BAR_BG}
+polybar.foreground: ${BAR_FG}
+polybar.active: ${BAR_ACTIVE}
+polybar.urgent: ${BAR_URGENT}
+polybar.empty: ${BAR_EMPTY}
+EOF
+	polybar-msg cmd restart
+	xsetroot -solid "${ROOT_BG}"
+	bspc config normal_border_color "${NORMAL_BORDER}"
+	bspc config focused_border_color "${FOCUS_BORDER}"
+	bspc config presel_feedback_color "${FOCUS_BORDER}"
+	python ~/.config/alacritty/switch_bg.py "$SCHEME"
+	emacsclient --eval "(my-select-theme '${EMACS_THEME})"
+}
+
+case "$CMD" in
+    light-colors|dark-colors)
+	switch_colors
+	;;
+    dmenu|dmenu_run)
+	exec "$CMD" -nb "${BAR_BG}" -nf "${BAR_FG}" -sb "${BAR_ACTIVE}" -sf "${BAR_FG}" -fn "$FONT" "$@"
+	;;
+esac