Screenshot / Code Snippet
There's a new tag synonym dashboard, which looks nice except for those thumbs up/down buttons. Since we're Stack Exchange, not Facebook, they should be the familiar triangles instead. I've posted an answer asking for a change; that was status-declined, so this userscript aims to fill the gap.
Developed and tested with ViolentMonkey, Firefox and macOS, but I expect no platform/browser/extension differences.