Byline opacity doesn't change

Maybe it’s me, but i can’t get byline opacity to change, neither from setting changes or shortcode.

Is it normal?

here’s my shortcode:
[wp-tiles display=’text=show&byline=categories&bylineOpacity=0.1&cellPadding=10′ template=”News” posts_query=’numberposts=7&category=all&orderby=menu_order&order=descending&post_type=place&include=887,2317,894,883,2294,2064,1928′]

https://guidepaperback.com

https://www.ads-software.com/plugins/wp-tiles/