Hello,
I made a theme component from this. I think it makes it easier. 
Thanks to @manuel’s previously made theme component Category List with Banners I can easily implement the list setting to the reactions label. Thank you 
I added fixes and some settings:
-
reactions_label
Separate with semicolon;
reaction name;reaction label
-
reactions picker rounding
Reactions picker (border-radius) corners rounding. You can use px, em, etc
Default 1em.
If you want to make it more or less rounded change this setting.
The previous version was 2em.
-
state panel rounding
Reactions State Panel (border-radius) corners rounding. You can use px, em, etc
-
user list rounding
Reactions User list (border-radius) corners rounding. You can use px, em, etc
-
hide user list heading
This option will hide this user list heading on panel. The heading is smiley on this image.
-
hide user list
This option will hide the user list panel. This is the dark hovered panel.
-
hide who liked
This option will hide the default who liked section.
I have a few more plans with this component, which I will add later.