Bump --> Figure axes property of bode plots

I am plotting a bode diagram of transfer functions. I want the "tick label" fonts of both the magnitude plot and phase plot to be of size 20 and to be black color. For some reason the tick label font size of the magnitude plot is always small. And the tick label font color is grey. It would be great help if someone could point me towards a way of doing it.

The code is as follows:

s = tf('s');

tf1 = s/(s+1); tf2 = (s+2)/(s^2+2*s+3);

figure; hold on;

bode(tf1,'b',tf2,'r');

object_handles2 = findall(gcf);

c1d = findobj(object_handles2,'Type','text');

c2d = findobj(object_handles2,'Type','line');

set(c1d,'FontSize',20,'FontWeight','bold','color',[0 0 0])

set(gca,'FontSize',20,'FontWeight','bold')

set(gcf,'Position',[100 0 700 700])

set(c2d,'LineWidth',2);

hold off;