lupan-set-theme: do not change background and emacs theme

xsession/bin/lupan-set-theme

@@ -11,21 +11,14 @@ if [ "$THEME" = "toggle" ]; then
 fi
 
 if [ "$THEME" = dark ]; then
-    BGCOLOR=#4a4a4a
     GTK_THEME=Materia-dark
 elif [ "$THEME" = light ]; then
-    BGCOLOR=#cacaca
     GTK_THEME=Materia-light
 else
     echo "error: unknown theme: should be either dark, light or toggle" >&2
     exit 1
 fi
 
-# Background color
-if [ ! -x ~/.fehbg ]; then
-    hsetroot -solid "$BGCOLOR"
-fi
-
 # Alacritty
 if [ -f ~/.config/alacritty/alacritty.yml ]; then
     sed -i "s/^colors: [*].*/colors: *$THEME/" ~/.config/alacritty/alacritty.yml
@@ -36,8 +29,3 @@ if [ -f ~/.config/xsettingsd/xsettingsd.conf ]; then
     sed -i -E "s#(Net/ThemeName) .*#\\1 \"${GTK_THEME}\"#" ~/.config/xsettingsd/xsettingsd.conf
     pkill -HUP -x xsettingsd
 fi
-
-# Emacs
-if which emacsclient > /dev/null; then
-    emacsclient --eval "(my-select-theme '$THEME)"
-fi