The only answer I have to that is to click on the DEFault template or any other template.  That reverts the colors.

[description="Trading in the direction of Momentum, Max"]

[target=price]

period := input("RSI period",21,1);

RS := RSI(C,period);

n := input("MOM period",10,1);

MOM:=100*(ma((C-Ref(LLV(C,n),-n)),5,E) / ma((HHV(C,n)-LLV(C,n)),5,E));

method := inputma("Method",S);

[linestyle=pricecolor]

[color=lime green]

If(MOM > 0 and RS > 50,1,0);

[color=indian red]

If(MOM < 0 and RS < 50,1,0);

[color=black]

If(MOM < 0 and RS > 50,1,0);

If(MOM > 0 and RS < 50,1,0);

[linestyle=solid; color=lawn green; width=2]

ma(C,period,method);

insidebar:=if(H<hist(H,1) and L>hist(L,1),1,0);

MAup:=ma(C,period,S)>hist(ma(C,period,S),2)

[linestyle=marker; marker=type1; name=IB]

if(MOM > 0 and RS > 50 and inside and MAup,1,0);

[linestyle=marker; marker=type2; name=IB]

if(MOM < 0 and RS < 50 and inside and not MAup,1,0);

[linestyle=points; color=blue; width=2]

PHl:=if(ref(MAup,1) and ref(H,1)>H and ref(H,1)>ref(H,2),H*1.003,undefined);

PHi:=if(MAup and H>ref(H,-1) and ref(H,1)<H,H*1.003,undefined);

PHiR:=if(ref(PHi,-1),H*1.003,undefined);

PHi;

[color=red]

PLl:=if(not ref(MAup,1) and ref(L,1)<L and ref(L,1)<ref(L,2),L*0.997,undefined);

PLo:=if(not MAup and L<ref(L,-1) and ref(L,1)>L,L*0.997,undefined);

PLoR:=if(ref(PLo,-1),L*0.997,undefined);

PLo;

[drawundefined=gap]

[linestyle=solid; color=blue; width=1]

if(PHl,PHl,if(PHi,PHi,if(PHiR,PHiR,undefined)));

[color=red]

if(PLl,PLl,if(PLo,PLo,if(PLoR,PLoR,undefined)));