Plot label 1D mesh in FreeFem

General Discussion
1

What to add into my code lines to add a numerical scale, colours and labels onto my plot?

for (real t=dt; t <= T; t+dt){
	EB;
	uOld = u;
	utOld = ut;

	meshL Thrj = movemesh(Th, [x, 0, u]);
	plot(Th, Thrj);
}
2

value = 1 for values, cmm=“label” …