diff --git a/default_palette.txt b/default_palette.txt
new file mode 100644
index 0000000..02014be
--- /dev/null
+++ b/default_palette.txt
@@ -0,0 +1,36 @@
+#e0d1e0
+#c8a8c8
+#ae7eae
+#965496
+#7d2a7d
+#640164
+#ead2e1
+#dfaacb
+#d482b5
+#c95aa0
+#bd328a
+#b20a74
+#e6ded0
+#d6c5a8
+#c5ac7f
+#b49356
+#a47a2d
+#936105
+#cddecf
+#a6c3aa
+#7da784
+#568b5e
+#2d6f38
+#065413
+#d1d3dc
+#a8adbd
+#7d859e
+#545e7f
+#293760
+#001041
+#d1d3d7
+#a7abb3
+#7d828d
+#545a68
+#293143
+#00091e
diff --git a/dynamic.violet.yaml b/dynamic.violet.yaml
index df10c95..ec4c4c6 100644
--- a/dynamic.violet.yaml
+++ b/dynamic.violet.yaml
@@ -35,20 +35,22 @@ window:
   active:
     window_name: " #W "
     window_index: " #I"
+    icon: ""
   inactive:
     window_name: " #W "
     window_index: " #I"
+    icon: ""
 status_right:
   directory:
     enabled: on
     tmux_option: " #{b:pane_current_path} "
     icon: " "
     decorator: ""
-    fg_option: "#284b4b"
-    bg_option: "#aa9784"
-    fg_icon: "#284b4b"
-    bg_icon: "#755636"
-    fg_decorator: "#755636"
+    fg_option: "#293143"
+    bg_option: "#c5ac7f"
+    fg_icon: "#293143"
+    bg_icon: "#a47a2d"
+    fg_decorator: "#a47a2d"
 
   date:
     enabled: on
diff --git a/dynamic_theme.sh b/dynamic_theme.sh
deleted file mode 100755
index 6af39ee..0000000
--- a/dynamic_theme.sh
+++ /dev/null
@@ -1,73 +0,0 @@
-#!/usr/bin/env bash
-_DIR="$(cd "$(dirname "$0")" && pwd)"
-export PATH="${_DIR}:${PATH}"
-
-# 3 groups of colors from light to deep
-# the colors are generated by palette.py
-PLACE_HOLDERS=(
-    "PALE_RED"
-    "LIGHT_RED"
-    "MIDDLE_RED"
-    "STRONG_RED"
-    "DARK_RED"
-    "DEEP_RED"
-    "PALE_PURPLE"
-    "LIGHT_PURPLE"
-    "MIDDLE_PURPLE"
-    "STRONG_PURPLE"
-    "DARK_PURPLE"
-    "DEEP_PURPLE"
-    "PALE_ORANGE"
-    "LIGHT_ORANGE"
-    "MIDDLE_ORANGE"
-    "STRONG_ORANGE"
-    "DARK_ORANGE"
-    "DEEP_ORANGE"
-    "PALE_GREEN"
-    "LIGHT_GREEN"
-    "MIDDLE_GREEN"
-    "STRONG_GREEN"
-    "DARK_GREEN"
-    "DEEP_GREEN"
-    "PALE_BLUE"
-    "LIGHT_BLUE"
-    "MIDDLE_BLUE"
-    "STRONG_BLUE"
-    "DARK_BLUE"
-    "DEEP_BLUE"
-    "PALE_GRAY"
-    "LIGHT_GRAY"
-    "MIDDLE_GRAY"
-    "STRONG_GRAY"
-    "DARK_GRAY"
-    "DEEP_GRAY"
-)
-
-palette=$(python3 -c "import palette; palette = palette.create_theme_palette(); print(palette)")
-tmpfile=$(mktemp)
-colors=$(echo $palette | grep -iEo '#[[:alnum:]]{6}' > ${tmpfile})
-
-dynamic_theme_name=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 8)
-dynamic_theme_name="dynamic"
-dynamic_theme_file_name="${dynamic_theme_name}.theme.yaml"
-dynamic_config_file_name="${dynamic_theme_name}.violet.yaml"
-tmux set-option -gq "@dynamic_theme_name" "${dynamic_theme_name}"
-tmux set-option -gq "@dynamic_config_file_name" "${dynamic_config_file_name}"
-if [ -e "${dynamic_theme_file_name}" ];then
-    rm -f "${dynamic_theme_file_name}"
-fi
-if [ -e "${dynamic_config_file_name}" ];then
-    rm -f "${dynamic_config_file_name}"
-fi
-cp "template.theme.yaml" "${dynamic_theme_file_name}"
-cp "violet.yaml" "${dynamic_config_file_name}"
-# trap "rm -f ${dynamic_theme_file_name}" EXIT INT TERM
-
-index=1
-while read -r _color;do
-    sed -i "s/${PLACE_HOLDERS[$index]}/${_color}/g" "${dynamic_theme_file_name}"
-    sed -i "s/${PLACE_HOLDERS[$index]}/${_color}/g" "${dynamic_config_file_name}"
-    ((index++))
-done < "${tmpfile}"
-
-source violet.tmux
diff --git a/palette.py b/palette.py
index bfde86e..1bdf37b 100644
--- a/palette.py
+++ b/palette.py
@@ -123,7 +123,7 @@ def generate_random_dark_green(n_colors=1):
 
 
 def generate_palette(n_palette=1):
-    """ "Convert"""
+    """Convert"""
 
     n_colors = 24
     groups = 6
diff --git a/template.theme.yaml b/template.theme.yaml
index d6c093e..69a04ed 100644
--- a/template.theme.yaml
+++ b/template.theme.yaml
@@ -27,11 +27,11 @@ window:
   active:
     fg_window: "DARK_GRAY"
     bg_window: "MIDDLE_GREEN"
-    fg_window_index: "DARK_GRAY"
-    bg_window_index: "DARK_GREEN"
+    fg_window_index: "DEEP_GRAY"
+    bg_window_index: "STRONG_GREEN"
     fg_icon: "DARK_GRAY"
     bg_icon: "DARK_GREEN"
-    fg_decorator: "DARK_GREEN"
+    fg_decorator: "STRONG_GREEN"
     bg_decorator: "DEEP_GRAY"
     icon: ""
     decorator: ""
@@ -54,7 +54,7 @@ status_right:
   style: "nobold,nounderscore,noitalics"
   fg_option: "DARK_GRAY"
   bg_option: "STRONG_GRAY"
-  fg_icon: "DEEP_GRAY"
+  fg_icon: "MIDDLE_GRAY"
   bg_icon: "DARK_GRAY"
   fg_decorator: "DARK_GRAY"
   bg_decorator: "DEEP_GRAY"
diff --git a/violet.py b/violet.py
index cef6d5e..53137a0 100644
--- a/violet.py
+++ b/violet.py
@@ -533,7 +533,9 @@ def run_shell_command(command, default_output=None):
             .decode(UTF_8)
             .strip()
         )
-        return value
+        if value is not None and value.strip() != EMPTY:
+            return value
+        return default_output
     except Exception:
         logger.opt(exception=True).debug(
             f"{command} is failed to run. use default value: \
diff --git a/violet.theme.yaml b/violet.theme.yaml
deleted file mode 100644
index c0724e4..0000000
--- a/violet.theme.yaml
+++ /dev/null
@@ -1,60 +0,0 @@
----
-status_line:
-  foreground: "#d0d0d0"
-  background: "#303446"
-  left_icon: ""
-  right_icon: ""
-  left_decorator: ""
-  right_decorator: ""
-  fg_option: "#c6d0f5"
-  bg_option: "#414559"
-  fg_icon: "#303030"
-  bg_icon: "#cc8400"
-  fg_decorator: "#454a64"
-  bg_decorator: "#303446"
-  style: "nobold,nounderscore,noitalics"
-status_left:
-  fg_option: "#c6d0f5"
-  bg_option: "#414559"
-  fg_icon: "#ffff4f"
-  bg_icon: "#820000"
-  fg_decorator: "#820000"
-  bg_decorator: "#303446"
-  icon: "  "
-  decorator: ""
-  style: "nobold,nounderscore,noitalics"
-window:
-  active:
-    fg_window: "#2a432a"
-    bg_window: "#84b384"
-    fg_window_index: "#2a432a"
-    bg_window_index: "#418100"
-    fg_icon: "#2a432a"
-    bg_icon: "#418100"
-    fg_decorator: "#418100"
-    bg_decorator: "#303446"
-    icon: ""
-    decorator: ""
-    style: "nobold,nounderscore,noitalics"
-  inactive:
-    fg_window: "#2a432a"
-    bg_window: "#646b91"
-    fg_window_index: "#646b91"
-    bg_window_index: "#454a64"
-    fg_icon: ""
-    bg_icon: ""
-    fg_decorator: "#454a64"
-    bg_decorator: "#303446"
-    icon: ""
-    decorator: ""
-    style: "nobold,nounderscore,noitalics"
-status_right:
-  icon: ""
-  decorator: ""
-  style: "nobold,nounderscore,noitalics"
-  fg_option: "#2a432a"
-  bg_option: "#71789d"
-  fg_icon: "#303030"
-  bg_icon: "#cc8400"
-  fg_decorator: "#454a64"
-  bg_decorator: "#303446"
diff --git a/violet.tmux b/violet.tmux
index 5ea7b5e..e4883ed 100755
--- a/violet.tmux
+++ b/violet.tmux
@@ -1,16 +1,114 @@
 #!/usr/bin/env bash
 _DIR="$(cd "$(dirname "$0")" && pwd)"
+source "${_DIR}/utils.sh"
+
+TMUX_COMMANDS_FILENAME="tmux_commands.txt"
+DEFAULT_PALETTE_FILENAME="default_palette.txt"
+DYNAMIC_PALETTE_FILENAME="dynamic_palette.txt"
+TEMPLATE_THEME_FILENAME="template.theme.yaml"
+DEFAULT_CONFIG_FILENAME="violet.yaml"
+DYNAMIC_THEME_NAME="dynamic"
+PALETTE_FILENAME="${DEFAULT_PALETTE_FILENAME}"
+
+PLACE_HOLDERS=(
+    "PALE_RED"
+    "LIGHT_RED"
+    "MIDDLE_RED"
+    "STRONG_RED"
+    "DARK_RED"
+    "DEEP_RED"
+    "PALE_PURPLE"
+    "LIGHT_PURPLE"
+    "MIDDLE_PURPLE"
+    "STRONG_PURPLE"
+    "DARK_PURPLE"
+    "DEEP_PURPLE"
+    "PALE_ORANGE"
+    "LIGHT_ORANGE"
+    "MIDDLE_ORANGE"
+    "STRONG_ORANGE"
+    "DARK_ORANGE"
+    "DEEP_ORANGE"
+    "PALE_GREEN"
+    "LIGHT_GREEN"
+    "MIDDLE_GREEN"
+    "STRONG_GREEN"
+    "DARK_GREEN"
+    "DEEP_GREEN"
+    "PALE_BLUE"
+    "LIGHT_BLUE"
+    "MIDDLE_BLUE"
+    "STRONG_BLUE"
+    "DARK_BLUE"
+    "DEEP_BLUE"
+    "PALE_GRAY"
+    "LIGHT_GRAY"
+    "MIDDLE_GRAY"
+    "STRONG_GRAY"
+    "DARK_GRAY"
+    "DEEP_GRAY"
+)
+generate_palette_colors(){
+    palette=$(python3 -c "import palette; palette = palette.create_theme_palette(); print(palette)")
+    echo $palette | grep -iEo '#[[:alnum:]]{6}' > "${DYNAMIC_PALETTE_FILENAME}"
+}
+
+create_dynamic_theme_file(){
+    dynamic_theme_file_name="${DYNAMIC_THEME_NAME}.theme.yaml"
+    tmux set-option -gq "@dynamic_theme_name" "${DYNAMIC_THEME_NAME}"
+    if [ -e "${dynamic_theme_file_name}" ];then
+        rm -f "${dynamic_theme_file_name}"
+    fi
+    cp "${TEMPLATE_THEME_FILENAME}" "${dynamic_theme_file_name}"
+    index=0
+    while read -r _color;do
+        sed -i "s/${PLACE_HOLDERS[$index]}/${_color}/g" "${dynamic_theme_file_name}"
+        ((index++))
+    done < "${PALETTE_FILENAME}"
+}
+
+create_dynamic_config_file(){
+    dynamic_config_file_name="${DYNAMIC_THEME_NAME}.violet.yaml"
+    tmux set-option -gq "@dynamic_config_file_name" "${dynamic_config_file_name}"
+    if [ -e "${dynamic_config_file_name}" ];then
+        rm -f "${dynamic_config_file_name}"
+    fi
+    cp "violet.yaml" "${dynamic_config_file_name}"
+    index=0
+    while read -r _color;do
+        sed -i "s/${PLACE_HOLDERS[$index]}/${_color}/g" "${dynamic_config_file_name}"
+        ((index++))
+    done < "${PALETTE_FILENAME}"
+}
+
 main(){
     export PATH="${_DIR}:${PATH}"
     export PYTHONPATH="${_DIR}:${PATH}"
     find ${_DIR} -name "*.sh" -exec chmod u+x '{}' \;
+    tmux bind-key C-g "run -b 'violet.tmux -d'"
     tmux set-environment -g 'PATH' "${_DIR}:${PATH}"
     tmux set-environment -g 'PYTHONPATH' "${_DIR}:${PATH}"
     tmux bind-key g "run 'python -c \"import palette; palettes = palette.generate_palette(); print(palettes)\"'"
     tmux_commands="$(python3 -c "import violet; tmux_commands = violet.violet(); print(tmux_commands)")"
-    tmp_conf=$(mktemp)
-    echo "${tmux_commands}" | sed -e 's/True/on/g' | sed -e 's/False/off/g' | tr ';' '\n' > "${tmp_conf}"
-    tmux source "${tmp_conf}"
+    echo "${tmux_commands}" | sed -e 's/True/on/g' | sed -e 's/False/off/g' | tr ';' '\n' > "${TMUX_COMMANDS_FILENAME}"
+    tmux source "${TMUX_COMMANDS_FILENAME}"
 }
 
+CREATE_DYNMIC_THEME=${FALSE}
+
+while getopts "d" opt; do
+    case $opt in
+        d) CREATE_DYNMIC_THEME=${TRUE};;
+    esac
+done
+
+set -x
+if [ $CREATE_DYNMIC_THEME -eq $TRUE ];then
+    PALETTE_FILENAME=${DYNAMIC_PALETTE_FILENAME}
+    generate_palette_colors
+fi
+create_dynamic_theme_file
+create_dynamic_config_file
+
 main
+set +x
diff --git a/violet.yaml b/violet.yaml
index 44d43f2..93151f5 100644
--- a/violet.yaml
+++ b/violet.yaml
@@ -35,9 +35,11 @@ window:
   active:
     window_name: " #W "
     window_index: " #I"
+    icon: ""
   inactive:
     window_name: " #W "
     window_index: " #I"
+    icon: ""
 status_right:
   directory:
     enabled: on