[plotting] lbn: label

plotting.py

@@ -441,9 +441,9 @@ def figure_lbn_weights(
 
     # create and style the plot
     ax.imshow(weights, cmap=cmap, vmin=0, vmax=100, origin="lower")
-    ax.set_title("{} weights".format(name), fontdict={"fontsize": 12})
+    ax.set_title(f"{name} weights", fontdict={"fontsize": 12})
 
-    ax.set_xlabel("LBN particle number")
+    ax.set_xlabel(f"LBN {name} number")
     ax.set_xticks(list(range(weights.shape[1])))
 
     ax.set_ylabel("Input particle")