If you don't like the themes
In menu
, click , then choose .The Theme window opens.
To edit an existing theme, you select the theme and then you click Edit selected theme.
To create a new theme, you click Create a new theme.
Next, the Theme editor window opens. Here you can change all aspects of a theme.
Note: You cannot save a theme with a name that is the same as an existing built-in theme. If you are editing a built-in theme, then you must think of a different name to save that theme.