How to change datepicker stuff

I am trying to use this
http://api.jqueryui.com/datepicker/#option-buttonText
and cannot understand HOW to make the following changes?

make the color go to something I want; default is red

how to make the minimum date work
Documentation says:
// Setter
$( ".selector" ).datepicker( "option", "minDate", new Date(2007, 1 - 1, 1) );

where docs state:

• Date: A date object containing the minimum date.
• Number: A number of days from today. For example 2 represents two days from today and -1 represents yesterday.
• String: A string in the format defined by the dateFormat option, or a relative date. Relative dates must contain value and period pairs; valid periods are "y" for years, "m" for months, "w" for weeks, and "d"for days. For example, "+1m +7d" represents one month and seven days from today.

Say what??????????
If I want the date to start at today, what do I do?

 

Thanks for your help. Not I coded my own.

 

Set minDate to 0, datepicker will start from today.
Like:
$( "#datepicker" ).datepicker({
minDate: 0
});
And if you want to change the color then you have to manage through the style.
Like:
.ui-datepicker {
background: #FF0000;
border: 1px solid #555;
color: #FFF;
}
Hope it will help you