diff --git a/src/ControlPlots.jl b/src/ControlPlots.jl
index 7374c7b..0f55c0e 100644
--- a/src/ControlPlots.jl
+++ b/src/ControlPlots.jl
@@ -13,6 +13,7 @@ mutable struct PlotX
     labels
     xlabel
     ylabels
+    ysize
     fig
     type::Int64
 end
@@ -26,7 +27,7 @@ function load(filename::String)
 end
 
 function plot(X, Ys::AbstractVector{<:AbstractVector}; xlabel="", ylabel="",
-              labels=nothing, fig="", disp=false)
+              labels=nothing, fig="", ysize=14, disp=false)
     if disp
         if fig != ""
             plt.figure(fig)
@@ -46,7 +47,7 @@ function plot(X, Ys::AbstractVector{<:AbstractVector}; xlabel="", ylabel="",
             plt.xlabel(xlabel, fontsize=14); 
         end
         if ylabel != ""
-            plt.ylabel(ylabel, fontsize=14); 
+            plt.ylabel(ylabel, fontsize=ysize); 
         end
         plt.grid(true)
         plt.legend()
@@ -54,15 +55,15 @@ function plot(X, Ys::AbstractVector{<:AbstractVector}; xlabel="", ylabel="",
     else
         println("OK")
     end
-    PlotX(X, Ys, labels, xlabel, ylabel, fig, 4)
+    PlotX(X, Ys, labels, xlabel, ylabel, ysize, fig, 4)
 end
 
-function plot(Y::AbstractVector{<:Number}; xlabel="", ylabel="", fig="", disp=false)
+function plot(Y::AbstractVector{<:Number}; xlabel="", ylabel="", fig="", ysize=14, disp=false)
     X = 1:length(Y)
-    plot(X, Y; xlabel, ylabel, fig, disp)
+    plot(X, Y; xlabel, ylabel, fig, disp, ysize)
 end
 
-function plot(X, Y::AbstractVector{<:Number}; xlabel="", ylabel="", fig="", disp=false)
+function plot(X, Y::AbstractVector{<:Number}; xlabel="", ylabel="", fig="", ysize=14, disp=false)
     if disp
         if fig != ""
             plt.figure(fig)
@@ -71,15 +72,15 @@ function plot(X, Y::AbstractVector{<:Number}; xlabel="", ylabel="", fig="", disp
         if xlabel != ""
             plt.xlabel(xlabel, fontsize=14); 
         end
-        plt.ylabel(ylabel, fontsize=14);
+        plt.ylabel(ylabel; fontsize=ysize);
         plt.xlim(X[begin], X[end])
         plt.grid(true)
         plt.tight_layout()
     end
-    PlotX(X, Y, nothing, xlabel, ylabel, fig, 1)
+    PlotX(X, Y, nothing, xlabel, ylabel, ysize, fig, 1)
 end
 
-function plotx(X, Y...; xlabel="time [s]", ylabels=nothing, fig="", title="", disp=false)
+function plotx(X, Y...; xlabel="time [s]", ylabels=nothing, fig="", title="", ysize=14, disp=false)
     if disp
         len=length(Y)
         fig_ = plt.figure(fig, figsize=(8, len*2))
@@ -93,7 +94,7 @@ function plotx(X, Y...; xlabel="time [s]", ylabels=nothing, fig="", title="", di
                 push!(ax, plt.subplot(subplot, sharex=ax[1]))
             end
             if i==1
-                plt.suptitle(title, fontsize=14) # Super title
+                plt.suptitle(title; fontsize=14) # Super title
             end
             if ! isnothing(ylabels)
                 lbl=ylabels[i]
@@ -102,7 +103,7 @@ function plotx(X, Y...; xlabel="time [s]", ylabels=nothing, fig="", title="", di
             end
             plt.plot(X, y, label=lbl)
             plt.xlim(X[begin], X[end])
-            plt.ylabel(lbl, fontsize=14);  
+            plt.ylabel(lbl; fontsize=ysize);  
             plt.grid(true)
             if i < len
                 plt.setp(ax[i].get_xticklabels(), visible=false)
@@ -113,32 +114,32 @@ function plotx(X, Y...; xlabel="time [s]", ylabels=nothing, fig="", title="", di
         
         plt.tight_layout()
     end
-    PlotX(collect(X), Y, nothing, xlabel, ylabels, fig, 2)
+    PlotX(collect(X), Y, nothing, xlabel, ylabels, ysize, fig, 2)
 end
 
-function plotxy(X, Y; xlabel="", ylabel="", fig="", disp=false)
+function plotxy(X, Y; xlabel="", ylabel="", fig="", ysize=14, disp=false)
     if disp
         if fig != ""
             plt.figure(fig, figsize=(6,6))
         end
         plt.plot(X, Y)
         plt.xlabel(xlabel, fontsize=14);
-        plt.ylabel(ylabel, fontsize=14);  
+        plt.ylabel(ylabel, fontsize=ysize);  
         plt.grid(true)
         plt.tight_layout()
     end
-    PlotX(X, Y, nothing, xlabel, ylabel, fig, 3)
+    PlotX(X, Y, nothing, xlabel, ylabel, ysize, fig, 3)
 end
 
 function display(P::PlotX)
     if P.type == 1
-        plot(P.X, P.Y; xlabel=P.xlabel, ylabel=P.ylabels, fig=P.fig, disp=true)
+        plot(P.X, P.Y; xlabel=P.xlabel, ylabel=P.ylabels, fig=P.fig, ysize=P.ysize, disp=true)
     elseif P.type == 2
-        plotx(P.X, P.Y...; xlabel=P.xlabel, ylabels=P.ylabels, fig=P.fig, disp=true)
+        plotx(P.X, P.Y...; xlabel=P.xlabel, ylabels=P.ylabels, fig=P.fig, ysize=P.ysize, disp=true)
     elseif P.type == 3
-        plotxy(P.X, P.Y; xlabel=P.xlabel, ylabel=P.ylabels, fig=P.fig, disp=true)
+        plotxy(P.X, P.Y; xlabel=P.xlabel, ylabel=P.ylabels, fig=P.fig, ysize=P.ysize, disp=true)
     else
-        plot(P.X, P.Y; xlabel=P.xlabel, labels=P.labels, fig=P.fig, disp=true)
+        plot(P.X, P.Y; xlabel=P.xlabel, labels=P.labels, fig=P.fig, ysize=P.ysize, disp=true)
     end
     plt.pause(0.01)
     plt.show(block=false)