Theme development

hello

how can I solve the following error message?
Undefined index: preview_css in theme_color_scheme_form()
line: 270 -- modules/color/color.module

they appear on the Home

I use Acquia Prosper

Thank you.

hi, i want to make main menu to the right align

i can't find the code

i uploaded the css

please help

web site link : www.ibendali.com

css link: www.ibendali.com/style.css

thanks

I'm having an issue with my menu on the responsive size. For some reason my menu doesn't collapse so I cannot see any of my items on my menu on a tablet or a mobile. Using the inspect element I check and all the pages from my menu are in the html but the collapsing part is not working anymore. I'm currently using the Project Bootstrap .

Can anyone provide me some tips on how to troubleshoot this problem?

Any help will be appreciated.

Hi folks.
I'm having a bit of a head-scratcher on the issue of pulling individual items from a field collection, specifically in a views field template.
I can do it on a node display just fine.

here's the scenario:
I have a field collection called "field_speaker_info". This field collection has "field_speaker_name", "field_speaker_affiliation", and "field_speaker_bio".
I need to display these separately in various views.

Hello,

Using Drupal + Zen I am currently theming.
Unfortunately when creating the horizontal navigation menu every <li> gets unwanted extra space on the right side.

I wish to create an invoice template.

I have used hook_theme.

/**
 * Implements hook_theme().
 */
function MyModule_theme($existing, $type, $theme, $path) {
	return array(
	    'MyModule_invoice' => array(
	    	'variables' => array('invoice_content'=>NULL),
	    	'template' => 'templates/invoice',
	    ),
	);
}

Unfortunately, the template is showing in the content region/block of my site.