Changing Schema Type without function.php

Hello

thank you very much for doing this awesome plugin.

I use your plugin on 5 sites of my website (so not globally) and would like to change the Schema.org-Type from Article to SoftwareApplication without touching the function.php of my theme (to insert the code you reccomanded in the readme).

Is there a possibility to do so using your wp-postratings/wp-postratings.php file? If yes how?

I tried to change this line there to SoftwareApplication:
—————————————–
// Check To See Whether User Has Voted
$user_voted = check_rated($ratings_id);
// HTML Attributes
if( is_single() || is_page() ) {
$itemtype = apply_filters(‘wp_postratings_schema_itemtype’, ‘itemscope itemtype=”http://schema.org/SoftwareApplication “‘);
$attributes = ‘id=”post-ratings-‘.$ratings_id.'” class=”post-ratings” ‘.$itemtype;
} else {
$attributes = ‘id=”post-ratings-‘.$ratings_id.'” class=”post-ratings”‘;
}

————————–

but after doing so the google structured data analyzer tool claims that there are no aggregate data for SoftwareApplication.

Please help changing the Schema Type

Many Thanks

https://wordpress.org/plugins/wp-postratings/