diff --git a/Dockerfile b/Dockerfile
index 835ff6b..ef68d2f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,11 +2,13 @@ FROM ubuntu:14.04.3
 MAINTAINER Doro Wu <fcwu.tw@gmail.com>
 
 ENV DEBIAN_FRONTEND noninteractive
-ENV HOME /root
+ENV HOME /home/ubuntu
 
 # built-in packages
 RUN apt-get update \
-    && apt-get install -y --force-yes --no-install-recommends software-properties-common \
+    && apt-get install -y --force-yes --no-install-recommends software-properties-common curl \
+    && sudo sh -c "echo 'deb http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04/ /' >> /etc/apt/sources.list.d/arc-theme.list" \
+    && curl -SL http://download.opensuse.org/repositories/home:Horst3180/xUbuntu_16.04/Release.key | sudo apt-key add - \
     && add-apt-repository ppa:fcwu-tw/ppa \
     && apt-get update \
     && apt-get install -y --force-yes --no-install-recommends \
@@ -21,6 +23,7 @@ RUN apt-get update \
         nginx \
         python-pip python-dev build-essential \
         mesa-utils libgl1-mesa-dri \
+        gnome-themes-standard gtk2-engines-pixbuf gtk2-engines-murrine pinta arc-theme \
     && apt-get autoclean \
     && apt-get autoremove \
     && rm -rf /var/lib/apt/lists/*
@@ -38,6 +41,7 @@ ADD nginx.conf /etc/nginx/sites-enabled/default
 ADD startup.sh /
 ADD supervisord.conf /etc/supervisor/conf.d/
 ADD doro-lxde-wallpapers /usr/share/doro-lxde-wallpapers/
+ADD gtkrc-2.0 /home/ubuntu/.gtkrc-2.0
 
 EXPOSE 6080
 WORKDIR /root
diff --git a/gtkrc-2.0 b/gtkrc-2.0
new file mode 100644
index 0000000..6b8def9
--- /dev/null
+++ b/gtkrc-2.0
@@ -0,0 +1,20 @@
+# DO NOT EDIT! This file will be overwritten by LXAppearance.
+# Any customization should be done in ~/.gtkrc-2.0.mine instead.
+include "/usr/share/themes/Arc/gtk-2.0/gtkrc"
+
+gtk-theme-name="Arc"
+gtk-icon-theme-name="nuoveXT2"
+gtk-font-name="Sans 10"
+gtk-cursor-theme-name="DMZ-White"
+gtk-cursor-theme-size=18
+gtk-toolbar-style=GTK_TOOLBAR_BOTH_HORIZ
+gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
+gtk-button-images=1
+gtk-menu-images=1
+gtk-enable-event-sounds=1
+gtk-enable-input-feedback-sounds=1
+gtk-xft-antialias=1
+gtk-xft-hinting=1
+gtk-xft-hintstyle="hintslight"
+gtk-xft-rgba="rgb"
+include "/home/ubuntu/.gtkrc-2.0.mine"
diff --git a/supervisord.conf b/supervisord.conf
index f797aae..8f8a51b 100644
--- a/supervisord.conf
+++ b/supervisord.conf
@@ -13,7 +13,7 @@ redirect_stderr=true
 priority=15
 directory=/home/ubuntu
 command=/usr/bin/lxsession
-user=ubuntu
+user=root
 autostart=true
 autorestart=true
 stopsignal=QUIT