Open up the ja_vars.php, there you find the settings for change menu,font,color:
# BEGIN: TEMPLATE CONFIGURATIONS ##########
####################################
#support extra color themes
$ja_color_themes = array('default','orange','green'); // You can add more color array if needed
$ja_header_images_wide = array ('header1.jpg','header2.jpg','header3.jpg','header4.jpg','header5.jpg');
$ja_header_images_narrow = array ('header1-n.jpg','header2-n.jpg','header3-n.jpg','header4-n.jpg','header5-n.jpg');
####################################
# Change the width of the template
$ja_width_default = 'wide'; // 'narrow': 800x600; 'wide': 1024x768
# default color
$ja_color_default = 'default'; //blank for default, else pick one of in extra color themes $ja_color_themes
#font size default
$ja_font_size_default = 3;
# Enable users option
$ja_tool = 6; // 0: 0: disable all; 1: Screen tool; 2: font tool; 3: screen + font; 4: color tool; 5: screen + color; 6: font + color; 7: all;
# Choose your prefer Menu Type
$ja_menutype = 1; // 1: Split Menu; 2: Son of Suckerfish Dropdown Menu; 3: Dropline; 4: Moomenu
# END: TEMPLATE CONFIGURATIONS ##########