Undefined index errors in the general settings

[tollmanz]

On the general settings page, I get two undefined notice errors. This occurred right after a fresh install of the plugin.

The errors occur on line 144 of admin/admin-settings-forms.php. I get two undefined notice errors for "css" and "std". My assumption is that these values are created after the first time you save values to form these form fields and the errors go away, but just wanted to point out that your $value array does not have those indices and some check should be put in place.