label=suite, color=colors[i%4], linestyle=linestyle[i//4], lw=2)
# transparent curve shading
ax.fill_between(bin_edges[:-1]+(width/2), 0, hist / width, alpha=0.2,
label=suite, color=colors[i%4], linestyle=linestyle[i//4], lw=2)
# transparent curve shading
ax.fill_between(bin_edges[:-1]+(width/2), 0, hist / width, alpha=0.2,