diff --git a/src/mcx_utils.c b/src/mcx_utils.c
index 86805620..05ad4c40 100644
--- a/src/mcx_utils.c
+++ b/src/mcx_utils.c
@@ -4986,18 +4986,18 @@ void mcx_printheader(Config* cfg) {
 ###############################################################################\n\
 #                      Monte Carlo eXtreme (MCX) -- CUDA                      #\n\
 #          Copyright (c) 2009-2023 Qianqian Fang <q.fang at neu.edu>          #\n\
-#                https://mcx.space/  &  https://neurojson.org/                #\n\
+#" S_BLUE "                https://mcx.space/  &  https://neurojson.org/                " S_MAGENTA "#\n\
 #                                                                             #\n\
-# Computational Optics & Translational Imaging (COTI) Lab- http://fanglab.org #\n\
+# Computational Optics & Translational Imaging (COTI) Lab- " S_BLUE "http://fanglab.org " S_MAGENTA "#\n\
 #   Department of Bioengineering, Northeastern University, Boston, MA, USA    #\n\
 ###############################################################################\n\
 #    The MCX Project is funded by the NIH/NIGMS under grant R01-GM114365      #\n\
 ###############################################################################\n\
 #  Open-source codes and reusable scientific data are essential for research, #\n\
 # MCX proudly developed human-readable JSON-based data formats for easy reuse,#\n\
-#  Please consider using JSON (https://neurojson.org/) for your research data #\n\
+#  Please consider using JSON (" S_BLUE "https://neurojson.org/" S_MAGENTA ") for your research data #\n\
 ###############################################################################\n\
-$Rev::      $ " MCX_VERSION "  $Date::                       $ by $Author::             $\n\
+$Rev::      $ " S_GREEN MCX_VERSION S_MAGENTA "  $Date::                       $ by $Author::             $\n\
 ###############################################################################\n" S_RESET);
 }