$var =~ s/^(menu\.main\..*)\.chars$/$1.size/;
$var =~ s/^(game\.panel\..*)\.chars$/$1.size/;
$var =~ s/^(game\.panel\..*)\.tile_size$/$1.size/;
$var =~ s/^(menu\.main\..*)\.chars$/$1.size/;
$var =~ s/^(game\.panel\..*)\.chars$/$1.size/;
$var =~ s/^(game\.panel\..*)\.tile_size$/$1.size/;