plot (1:10) 
get (gca, 'FontSize') 

ans =

    10

ht = title ('Title'); 
disp ('Title Props') 
Title Props
get (ht, 'FontSize') 

ans =

    11

get (ht, 'Color') 

ans =

     0     0     0

hx = xlabel ('xlabel'); 
disp ('Xlabel Props') 
Xlabel Props
get (hx, 'FontSize') 

ans =

    11

get (hx, 'Color') 

ans =

    0.1500    0.1500    0.1500

set (gca, 'FontSize', 20) 
disp ('After changing axes fontsize') 
After changing axes fontsize
get (ht, 'FontSize') 

ans =

    11

get (hx, 'FontSize') 

ans =

    11

set (gca, 'Xcolor', 'r') 
disp ('After changing axes color') 
After changing axes color
get (hx, 'Color') 

ans =

     1     0     0

close all 
hax = gca; 
set (hax, 'Xcolor', 'g') 
ht = title ('Title'); 
disp ('Title Props 2') 
Title Props 2
get (ht, 'Color') 

ans =

     0     0     0

hx = xlabel ('xlabel'); 
disp ('Xlabel Props 2') 
Xlabel Props 2
get (hx, 'Color') 

ans =

     0     1     0

diary off