d.patch

diff --git a/eutmux.tmux b/eutmux.tmux
index 370ac4b..9e90806 100755
--- a/eutmux.tmux
+++ b/eutmux.tmux
@@ -85,6 +85,7 @@ setup(){
     NEW_THEME_NAME=""
     ROTATE_THEME=${FALSE}
     CREATE_DYNMIC_THEME=${FALSE}
+    DARK_BASE_COLOR="" #23272e
 
     # set working directory to eutmux project path
     pushd "${_DIR}" >/dev/null 2>/dev/null || exit ${EXIT_ABNORMAL}
@@ -137,7 +138,7 @@ generate_palette_colors(){
     color_name="${1:-color.ColorName.RANDOM}"
     min_color="${2:-20}"
     max_color="${3:-40}"
-    dark_base_color="${4:-#23272e}" # elite-dark-blue: #1a1b26, github-dimmed: #23272e
+    dark_base_color="${4:-${DARK_BASE_COLOR}}" # elite-dark-blue: #1a1b26, github-dimmed: #23272e
     install_python_modules="${5:-${FALSE}}"
     append_gray="${6:-${TRUE}}"
     token_min_color="${7:-60}"
@@ -353,6 +354,7 @@ setup
 while getopts "adDrRt:T:" opt; do
     case $opt in
         a) show_all_themes; exit $? ;;
+        c) DARK_BASE_COLOR="${OPTARG}" ;;
         d) CREATE_DYNMIC_THEME=${TRUE} ;;
         D) THEME_NAME="eutmux" ;;
         r) ROTATE_THEME=${TRUE} ;;