Wanna change the look of your feedback buttons? You can with a little bit of JavaScript.
By default the feedback section at the bottom of each article uses emoji:

Icons8 is a great resource for finding free icons that look great.
Changing Feedback Icons
Paste the following code into Settings > Customize > Code > JavaScript. Replace ICON_URL_HERE with an icon URL you'd like to use, then hit Publish.
<script>
// Add your own icon URL in place of ICON_URL_HERE
var icons = {
positive: 'ICON_URL_HERE',
neutral: 'ICON_URL_HERE',
negative: 'ICON_URL_HERE',
};
function ready(fn) {
if (document.readyState != 'loading'){
fn();
} else if (document.addEventListener) {
document.addEventListener('DOMContentLoaded', fn);
} else {
document.attachEvent('onreadystatechange', function() {
if (document.readyState != 'loading')
fn();
});
}
}
function replaceIcon(selector, url) {
var el = document.querySelector(selector);
if (!el) return;
el.innerHTML = '<img src="' + url + '">';
}
ready(function() {
replaceIcon('.feedback-positive', icons.positive);
replaceIcon('.feedback-neutral', icons.neutral);
replaceIcon('.feedback-negative', icons.negative);
});
</script>
The three buttons carry the classes
feedback-positive, feedback-neutral, and feedback-negative, which is what the script above targets.Here's an example of what different feedback buttons could look like using the above JavaScript π

If your icons are hosted somewhere that blocks hotlinking, upload them to HelpDocs first and use those URLs instead.
Rather remove the feedback section altogether? On V5 templates, tick Disable Feedback in Template Options.