The theme Accelarate has the option of changing the color of whole theme. It is very comfortable. But how can I add some other styles to include them to this option. For example I want that together with the color of the whole theme changes the color of <table> tag with the css style: table.myownstyle.
I hope you understand what I mean, sorry for my English.
If you comfortable in writing CSS then you can go to Appearance->Theme Options->Design Tab->Custom CSS box. Paste you custom CSS there and save the changes. This CSS will override the theme CSS and will also remain if you update the theme.