diff --git a/src/simulation/elements/ARAY.cpp b/src/simulation/elements/ARAY.cpp
index be43af46f..baa4a1262 100644
--- a/src/simulation/elements/ARAY.cpp
+++ b/src/simulation/elements/ARAY.cpp
@@ -59,6 +59,7 @@ int Element_ARAY::update(UPDATE_FUNC_ARGS)
 					if (!r)
 						continue;
 					if ((r&0xFF)==PT_SPRK && parts[r>>8].life==3) {
+						bool isBlackDeco = false;
 						int destroy = (parts[r>>8].ctype==PT_PSCN)?1:0;
 						int nostop = (parts[r>>8].ctype==PT_INST)?1:0;
 						int colored = 0;
@@ -76,6 +77,8 @@ int Element_ARAY::update(UPDATE_FUNC_ARGS)
 									} else
 										parts[nr].ctype = colored;
 									parts[nr].temp = parts[i].temp;
+									if (isBlackDeco)
+										parts[nr].dcolour = 0xFF000000;
 								}
 							} else if (!destroy) {
 								if ((r&0xFF)==PT_BRAY) {
@@ -97,6 +100,8 @@ int Element_ARAY::update(UPDATE_FUNC_ARGS)
 										//docontinue = 1;
 										break;
 									}
+									if (isBlackDeco)
+										parts[r>>8].dcolour = 0xFF000000;
 								} else if ((r&0xFF)==PT_FILT) {//get color if passed through FILT
 									if (parts[r>>8].tmp != 6)
 									{
@@ -104,6 +109,7 @@ int Element_ARAY::update(UPDATE_FUNC_ARGS)
 										if (!colored)
 											break;
 									}
+									isBlackDeco = (parts[r>>8].dcolour==0xFF000000);
 									parts[r>>8].life = 4;
 								//this if prevents BRAY from stopping on certain materials
 								} else if ((r&0xFF)!=PT_STOR && (r&0xFF)!=PT_INWR && ((r&0xFF)!=PT_SPRK || parts[r>>8].ctype!=PT_INWR) && (r&0xFF)!=PT_ARAY && (r&0xFF)!=PT_WIFI && !((r&0xFF)==PT_SWCH && parts[r>>8].life>=10)) {
@@ -145,7 +151,9 @@ int Element_ARAY::update(UPDATE_FUNC_ARGS)
 									parts[r>>8].tmp = 2;
 									parts[r>>8].life = 1;
 									docontinue = 1;
-									//this if prevents red BRAY from stopping on certain materials
+									if (isBlackDeco)
+										parts[r>>8].dcolour = 0xFF000000;
+								//this if prevents red BRAY from stopping on certain materials
 								} else if ((r&0xFF)==PT_STOR || (r&0xFF)==PT_INWR || ((r&0xFF)==PT_SPRK && parts[r>>8].ctype==PT_INWR) || (r&0xFF)==PT_ARAY || (r&0xFF)==PT_WIFI || (r&0xFF)==PT_FILT || ((r&0xFF)==PT_SWCH && parts[r>>8].life>=10)) {
 									if((r&0xFF)==PT_STOR)
 									{
@@ -154,6 +162,7 @@ int Element_ARAY::update(UPDATE_FUNC_ARGS)
 									}
 									else if ((r&0xFF)==PT_FILT)
 									{
+										isBlackDeco = (parts[r>>8].dcolour==0xFF000000);
 										parts[r>>8].life = 2;
 									}
 									docontinue = 1;
diff --git a/src/simulation/elements/CRAY.cpp b/src/simulation/elements/CRAY.cpp
index b226a8ecf..756f98d79 100644
--- a/src/simulation/elements/CRAY.cpp
+++ b/src/simulation/elements/CRAY.cpp
@@ -78,6 +78,7 @@ int Element_CRAY::update(UPDATE_FUNC_ARGS)
 						continue;
 					if ((r&0xFF)==PT_SPRK && parts[r>>8].life==3) { //spark found, start creating
 						unsigned int colored = 0;
+						bool isBlackDeco = false;
 						bool destroy = parts[r>>8].ctype==PT_PSCN;
 						bool nostop = parts[r>>8].ctype==PT_INST;
 						bool createSpark = (parts[r>>8].ctype==PT_INWR);
@@ -105,7 +106,10 @@ int Element_CRAY::update(UPDATE_FUNC_ARGS)
 							} else if ((r&0xFF)==PT_FILT) { // get color if passed through FILT
 								if (parts[r>>8].tmp==0)
 								{
-									colored = wavelengthToDecoColour(Element_FILT::getWavelengths(&parts[r>>8]));
+									if (parts[r>>8].dcolour == 0xFF000000)
+										colored = 0xFF000000;
+									else
+										colored = wavelengthToDecoColour(Element_FILT::getWavelengths(&parts[r>>8]));
 								}
 								parts[r>>8].life = 4;
 							} else if ((r&0xFF) == PT_CRAY || nostop) {