All settings you can find in BeRocket_Product_Preview class in static variables $defaults.
public static $defaults = array(
'br_product_preview_general_settings' => array(
'use' => '1',
'style' => 'show',
'show' => array(
'image' => '1',
'title' => '1',
'buttons' => '1',
'description' => '1',
'meta' => '1',
'price' => '1',
),
),
'br_product_preview_style_settings' => array(
'block' => array(
'background-color' => 'ffffff',
'border-color' => '000000',
'margin-top' => '20',
'margin-bottom' => '20',
'margin-left' => '5%',
'margin-right' => '5%',
'border-top-width' => '0',
'border-bottom-width' => '0',
'border-left-width' => '0',
'border-right-width' => '0',
),
'content' => array(
'padding-top' => '20',
'padding-bottom' => '20',
'padding-left' => '20',
'padding-right' => '20',
),
'text' => array(
'color' => '000000',
'font-size' => '1em',
),
'link' => array(
'color' => '000000',
'font-size' => '1em',
),
'link_hover' => array(
'color' => '555555',
),
'price' => array(
'font-size' => '1em',
'color' => '77a464',
),
'image' => array(
'width' => '35%',
'float' => 'left',
'margin-top' => '10',
'margin-bottom' => '10',
'margin-left' => '10',
'margin-right' => '10',
),
'close' => array(
'color' => '000000',
'background-color' => 'ffffff',
'border-color' => '000000',
'top' => '-1em',
'bottom' => '',
'left' => '',
'right' => '1em',
'width' => '2em',
'height' => '2em',
'line-height' => '2em',
'font-size' => '1em',
'border-top-width' => '0',
'border-bottom-width' => '0',
'border-left-width' => '0',
'border-right-width' => '0',
'border-radius' => '20',
),
'close_hover' => array(
'color' => '000000',
'background-color' => 'ffffff',
),
),
'br_product_preview_text_settings' => array(
'button_text' => 'Quick View',
),
'br_product_preview_javascript_settings' => array(
'css' => '',
'before_open' => '',
'on_open' => '',
'after_close' => '',
),
'br_product_preview_license_settings' => array(
'plugin_key' => '',
),
);