@torn2 @azeus I would suggest you to change the icons in the theme template
change these lines...
https://github.com/NodeBB/nodebb-theme-persona/blob/master/templates/partials/topic/post.tpl#L70
https://github.com/NodeBB/nodebb-theme-persona/blob/master/templates/partials/topic/post.tpl#L77
I thought @Jonathan-Hunter changed the chevron's on hos site by using just CSS? I'm not sure where to begin on changing the template?
Yep I did. CSS is in the other thread of mine.
Solved for Persona Theme:
.topic [component="post/upvote"] {
background-image: url("https://i.imgur.com/EWAgx1K.png");
background-size: 20px;
}
.fa-chevron-up {
color: rgba(250,235,215,0);
}
@Jonathan-Hunter said in How to change the up vote/down vote:
Solved for Persona Theme:
.topic [component="post/upvote"] {
background-image: url("https://i.imgur.com/EWAgx1K.png");
background-size: 20px;
}
.fa-chevron-up {
color: rgba(250,235,215,0);
}
Works for me 
Thanks a lot.
@Jonathan-Hunter said in How to change the up vote/down vote:
@azeus Cool. Glad I could help.
Another question please, is there a way to center the icon ? Because it display as a mosaic 
What do you mean mosaic?
Looks ok to me. . Except the hand is a little cut off.
Perhaps change backgruond size to 18 or 16px
EDIT* @torn2 you may want to edit this style as well to make yours centered and look a bit better.
Ok I see. :
Try put this instead of making the backgrund-size in px:
background-size: cover;
@Jonathan-Hunter Tks for the support, I've tried with the cover option, it didn't help. Making the size smaller makes a better mozaic actually 
But it still not working
@azeus Ok damb, thats odd cos when I add these style on your site in dev tools it seams to work ok.
.topic [component="post/downvote"] {
background-image: url("/uploads/files/1467360867036-down-copy.png");
background-size: cover;
}
Sorry Couldn't get it to work.
@Jonathan-Hunter Appreciated. It's better with this:
background-size: contain;
background-repeat: no-repeat;
