diff --git a/C4.puml b/C4.puml
index 658f2a0..d727a69 100644
--- a/C4.puml
+++ b/C4.puml
@@ -101,7 +101,9 @@ skinparam rectangle<<boundary>> {
 !function $elementTagSkinparams($element, $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
   !$elementSkin = "skinparam " + $element +"<<" + $tagStereo + ">> {" + %newline()
   !if ($fontColor!="")
-    !$elementSkin = $elementSkin + "    StereotypeFontColor " + $fontColor + %newline()
+    !if ($tagStereo != "boundary")
+      !$elementSkin = $elementSkin + "    StereotypeFontColor " + $fontColor + %newline()
+    !endif
     !$elementSkin = $elementSkin + "    FontColor " + $fontColor + %newline()
   !endif
   !if ($bgColor!="")
@@ -124,7 +126,7 @@ skinparam rectangle<<boundary>> {
   !$tagSkin = $elementTagSkinparams("rectangle", $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
   !$tagSkin = $tagSkin + $elementTagSkinparams("database", $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
   !$tagSkin = $tagSkin + $elementTagSkinparams("queue", $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
-  !if ($tagStereo == "boundary")
+  !if ($tagStereo == "boundary" && $bgColor!="")
     !$tagSkin = $tagSkin + "skinparam package<<boundary>>StereotypeFontColor " + $bgColor + %newline()
     !$tagSkin = $tagSkin + "skinparam rectangle<<boundary>>StereotypeFontColor " + $bgColor + %newline()
   !endif