Go to: Studio > Developer > Forms > Data Items > System > Reactions

For LIKE add this;

a:7:{s:3:"use";s:5:"emoji";s:5:"emoji";s:4:"👍";s:4:"icon";s:12:"fa-thumbs-up";s:5:"image";s:904:"";s:5:"color";s:20:"sys-colored col-gray";s:6:"weight";s:1:"1";s:7:"default";a:2:{s:5:"title";s:37:"_sys_pre_lists_vote_reactions_default";s:4:"icon";s:8:"fa-smile";}}

For LOVE add this;

a:6:{s:3:"use";s:5:"emoji";s:5:"emoji";s:4:"💓";s:4:"icon";s:8:"fa-heart";s:5:"image";s:499:"";s:5:"color";s:20:"sys-colored col-red1";s:6:"weight";s:1:"1";}

For HAHA add this;

a:6:{s:3:"use";s:5:"emoji";s:5:"emoji";s:4:"😆";s:4:"icon";s:15:"fa-laugh-squint";s:5:"image";s:789:"";s:5:"color";s:20:"sys-colored col-red3";s:6:"weight";s:1:"1";}

For WOW add this;

a:6:{s:3:"use";s:5:"emoji";s:5:"emoji";s:4:"😲";s:4:"icon";s:11:"fa-surprise";s:5:"image";s:551:"";s:5:"color";s:20:"sys-colored col-red3";s:6:"weight";s:1:"1";}

For SAD add this;

a:6:{s:3:"use";s:5:"emoji";s:5:"emoji";s:4:"😥";s:4:"icon";s:11:"fa-sad-tear";s:5:"image";s:736:"";s:5:"color";s:20:"sys-colored col-red3";s:6:"weight";s:1:"1";}

For ANGRY add this;

a:6:{s:3:"use";s:5:"emoji";s:5:"emoji";s:4:"😠";s:4:"icon";s:8:"fa-angry";s:5:"image";s:858:"";s:5:"color";s:20:"sys-colored col-red3";s:6:"weight";s:1:"1";}

I hope this helps.