1) When I look in my Image folder I see images with size 120 x 120. Is this generated by YARPP it's PHP? In styles-thumbnails.php I found:
$height = 120; $width = 120;
But I don't understand PHP. But in my WordPress thumb size is on 150 x 150 so I don't think WP is making these smaller thumbs right?
2) If I want to use an other sized thumbnail, you have answers for that in the FAQ. I thought, let me try first with 150 x 150 because ALL my images have this thumbnail (generated by WP). I added this into my function.php:
add_image_size( 'yarpp-thumbnail', 150, 150, true );
But I still have images which are to long, also if I look up the source, the thumbsize image is not loaded:
<img width="100" height="150" src="http://www.ruzzleonline.nl/images/besterumblewoordlasterden325punten.jpg" class="attachment-yarpp-thumbnail wp-post-image" alt="Beste Ruzzle woord Lasterden 325 punten" style="display: block;" data-lazy-loaded="true">
Is there something I do wrong?