Cleaning up, some other preperation

static/coloris/coloris.min.css

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+.clr-picker{display:none;flex-wrap:wrap;position:absolute;width:200px;z-index:1000;border-radius:10px;background-color:#fff;justify-content:space-between;box-shadow:0 0 5px rgba(0,0,0,.05),0 5px 20px rgba(0,0,0,.1);-moz-user-select:none;-webkit-user-select:none;user-select:none}.clr-picker.clr-open{display:flex}.clr-gradient{position:relative;width:100%;height:100px;margin-bottom:15px;border-radius:3px 3px 0 0;background-image:linear-gradient(rgba(0,0,0,0),#000),linear-gradient(90deg,#fff,currentColor);cursor:pointer}.clr-marker{position:absolute;width:12px;height:12px;margin:-6px 0 0 -6px;border:1px solid #fff;border-radius:50%;background-color:currentColor;cursor:pointer}.clr-picker input[type=range]::-webkit-slider-runnable-track{width:100%;height:8px}.clr-picker input[type=range]::-webkit-slider-thumb{width:8px;height:8px;-webkit-appearance:none}.clr-picker input[type=range]::-moz-range-track{width:100%;height:8px;border:0}.clr-picker input[type=range]::-moz-range-thumb{width:8px;height:8px;border:0}.clr-hue{background-image:linear-gradient(to right,red 0,#ff0 16.66%,#0f0 33.33%,#0ff 50%,#00f 66.66%,#f0f 83.33%,red 100%)}.clr-alpha,.clr-hue{position:relative;width:calc(100% - 40px);height:8px;margin:5px 20px;border-radius:4px}.clr-alpha span{display:block;height:100%;width:100%;border-radius:inherit;background-image:linear-gradient(90deg,rgba(0,0,0,0),currentColor)}.clr-alpha input,.clr-hue input{position:absolute;width:calc(100% + 16px);height:16px;left:-8px;top:-4px;margin:0;background-color:transparent;opacity:0;cursor:pointer;appearance:none;-webkit-appearance:none}.clr-alpha div,.clr-hue div{position:absolute;width:16px;height:16px;left:0;top:50%;margin-left:-8px;transform:translateY(-50%);border:2px solid #fff;border-radius:50%;background-color:currentColor;box-shadow:0 0 1px #888;pointer-events:none}.clr-alpha div:before{content:'';position:absolute;height:100%;width:100%;left:0;top:0;border-radius:50%;background-color:currentColor}.clr-format{display:none;order:1;width:calc(100% - 40px);margin:0 20px 20px}.clr-segmented{display:flex;position:relative;width:100%;margin:0;padding:0;border:1px solid #ddd;border-radius:15px;box-sizing:border-box;color:#999;font-size:12px}.clr-segmented input,.clr-segmented legend{position:absolute;width:100%;height:100%;margin:0;padding:0;border:0;left:0;top:0;opacity:0;pointer-events:none}.clr-segmented label{flex-grow:1;padding:4px 0;text-align:center;cursor:pointer}.clr-segmented label:first-of-type{border-radius:10px 0 0 10px}.clr-segmented label:last-of-type{border-radius:0 10px 10px 0}.clr-segmented input:checked+label{color:#fff;background-color:#666}.clr-swatches{order:2;width:calc(100% - 32px);margin:0 16px}.clr-swatches div{display:flex;flex-wrap:wrap;padding-bottom:12px;justify-content:center}.clr-swatches button{position:relative;width:20px;height:20px;margin:0 4px 6px 4px;border:0;border-radius:50%;color:inherit;text-indent:-1000px;white-space:nowrap;overflow:hidden;cursor:pointer}.clr-swatches button:after{content:'';display:block;position:absolute;width:100%;height:100%;left:0;top:0;border-radius:inherit;background-color:currentColor;box-shadow:inset 0 0 0 1px rgba(0,0,0,.1)}input.clr-color{order:1;width:calc(100% - 80px);height:32px;margin:15px 20px 20px 0;padding:0 10px;border:1px solid #ddd;border-radius:16px;color:#444;background-color:#fff;font-family:sans-serif;font-size:14px;text-align:center;box-shadow:none}input.clr-color:focus{outline:0;border:1px solid #1e90ff}.clr-clear{display:none;order:2;height:24px;margin:0 20px 20px auto;padding:0 20px;border:0;border-radius:12px;color:#fff;background-color:#666;font-family:inherit;font-size:12px;font-weight:400;cursor:pointer}.clr-preview{position:relative;width:32px;height:32px;margin:15px 0 20px 20px;border:0;border-radius:50%;overflow:hidden;cursor:pointer}.clr-preview:after,.clr-preview:before{content:'';position:absolute;height:100%;width:100%;left:0;top:0;border:1px solid #fff;border-radius:50%}.clr-preview:after{border:0;background-color:currentColor;box-shadow:inset 0 0 0 1px rgba(0,0,0,.1)}.clr-alpha div,.clr-color,.clr-hue div,.clr-marker{box-sizing:border-box}.clr-field{display:inline-block;position:relative;color:transparent}.clr-field button{position:absolute;width:30px;height:100%;right:0;top:50%;transform:translateY(-50%);border:0;color:inherit;text-indent:-1000px;white-space:nowrap;overflow:hidden;pointer-events:none}.clr-field button:after{content:'';display:block;position:absolute;width:100%;height:100%;left:0;top:0;border-radius:inherit;background-color:currentColor;box-shadow:inset 0 0 1px rgba(0,0,0,.5)}.clr-alpha,.clr-alpha div,.clr-field button,.clr-preview:before,.clr-swatches button{background-image:repeating-linear-gradient(45deg,#aaa 25%,transparent 25%,transparent 75%,#aaa 75%,#aaa),repeating-linear-gradient(45deg,#aaa 25%,#fff 25%,#fff 75%,#aaa 75%,#aaa);background-position:0 0,4px 4px;background-size:8px 8px}.clr-marker:focus{outline:0}.clr-keyboard-nav .clr-alpha inputLine truncated

static/coloris/coloris.min.js

@@ -0,0 +1,6 @@
+/*!
+ * Copyright (c) 2021 Momo Bassit.
+ * Licensed under the MIT License (MIT)
+ * https://github.com/mdbassit/Coloris
+ */
+!function(d,p,s){var h,f,v,c,u,y,i,b,l,g,m,w,k,x,a=p.createElement("canvas").getContext("2d"),E={r:0,g:0,b:0,h:0,s:0,v:0,a:1},L={el:"[data-coloris]",parent:null,theme:"default",themeMode:"light",wrap:!0,margin:2,format:"hex",formatToggle:!1,swatches:[],swatchesOnly:!1,alpha:!0,focusInput:!0,autoClose:!1,clearButton:{show:!1,label:"Clear"},a11y:{open:"Open color picker",close:"Close color picker",marker:"Saturation: {s}. Brightness: {v}.",hueSlider:"Hue slider",alphaSlider:"Opacity slider",input:"Color value field",format:"Color format",swatch:"Color swatch",instruction:"Saturation and brightness selector. Use up, down, left and right arrow keys to select."}};function o(e){if("object"==typeof e)for(var t in e)switch(t){case"el":S(e.el),!1!==e.wrap&&T(e.el);break;case"parent":L.parent=p.querySelector(e.parent),L.parent&&L.parent.appendChild(h);break;case"themeMode":L.themeMode=e.themeMode,"auto"===e.themeMode&&d.matchMedia&&d.matchMedia("(prefers-color-scheme: dark)").matches&&(L.themeMode="dark");case"theme":e.theme&&(L.theme=e.theme),h.className="clr-picker clr-"+L.theme+" clr-"+L.themeMode;break;case"margin":e.margin*=1,L.margin=(isNaN(e.margin)?L:e).margin;break;case"wrap":e.el&&e.wrap&&T(e.el);break;case"formatToggle":N("clr-format").style.display=e.formatToggle?"block":"none",e.formatToggle&&(L.format="auto");break;case"swatches":Array.isArray(e.swatches)&&function(){var a=[];e.swatches.forEach(function(e,t){a.push('<button id="clr-swatch-'+t+'" aria-labelledby="clr-swatch-label clr-swatch-'+t+'" style="color: '+e+';">'+e+"</button>")}),a.length&&(N("clr-swatches").innerHTML="<div>"+a.join("")+"</div>")}();break;case"swatchesOnly":L.swatchesOnly=!!e.swatchesOnly,h.setAttribute("data-minimal",L.swatchesOnly),L.swatchesOnly&&(L.autoClose=!0);break;case"alpha":L.alpha=!!e.alpha,h.setAttribute("data-alpha",L.alpha);break;case"clearButton":var a="none";e.clearButton.show&&(a="block"),e.clearButton.label&&(i.innerHTML=e.clearButton.label),i.style.display=a;break;case"a11y":var l,r=e.a11y,o=!1;if("object"==typeof r)for(var n in r)r[n]&&L.a11y[n]&&(L.a11y[n]=r[n],o=!0);o&&(l=N("clr-open-label"),a=N("clr-swatch-label"),l.innerHTML=L.a11y.open,a.innerHTML=L.a11y.swatch,u.setAttribute("aria-label",L.a11y.close),b.setAttribute("aria-label",L.a11y.hueSlider),g.setAttribute("aria-label",L.a11y.alphaSlider),y.setAttribute("aria-label",L.a11y.input),f.setAttribute("aria-label",L.a11y.instruction));default:L[t]=e[t]}}function S(e){O(p,"click",e,function(e){var t=L.parent,a=e.target.getBoundingClientRect(),l=d.scrollY,r={left:!1,top:!1},o={x:0,y:0},n=a.x,i=l+a.y+a.height+L.margin;w=e.target,x=w.value,k=function(e){e=e.substring(0,3).toLowerCase();return"rgb"!==e&&"hsl"!==e?"hex":e}(x),h.classList.add("clr-open");var c,s=h.offsetWidth,u=h.offsetHeight;t?(c=d.getComputedStyle(t),e=parseFloat(c.marginTop),c=parseFloat(c.borderTopWidth),(o=t.getBoundingClientRect()).y+=c+l,n-=o.x,i-=o.y,n+s>t.clientWidth&&(n+=a.width-s,r.left=!0),i+u>t.clientHeight-e&&(i-=a.height+u+2*L.margin,r.top=!0),i+=t.scrollTop):(n+s>p.documentElement.clientWidth&&(n+=a.width-s,r.left=!0),i+u-l>p.documentElement.clientHeight&&(i=l+a.y-u-L.margin,r.top=!0)),h.classList.toggle("clr-left",r.left),h.classList.toggle("clr-top",r.top),h.style.left=n+"px",h.style.top=i+"px",v={width:f.offsetWidth,height:f.offsetHeight,x:h.offsetLeft+f.offsetLeft+o.x,y:h.offsetTop+f.offsetTop+o.y},A(x),L.focusInput&&y.focus({preventScroll:!0})}),O(p,"input",e,function(e){var t=e.target.parentNode;t.classList.contains("clr-field")&&(t.style.color=e.target.value)})}function T(e){p.querySelectorAll(e).forEach(function(e){var t,a=e.parentNode;a.classList.contains("clr-field")||((t=p.createElement("div")).innerHTML='<button aria-labelledby="clr-open-label"></button>',a.insertBefore(t,e),t.setAttribute("class","clr-field"),t.style.color=e.value,t.appendChild(e))})}function n(e){w&&(e&&x!==w.value&&(w.value=x,w.dispatchEvent(new Event("input",{bubbles:!0}))),x!==w.value&&w.dispatchEvent(new Event("change",{bubbles:!0})),h.classList.remove("clr-open"),L.focusInput&&w.focus({preventScroll:!0}),w=null)}function A(e){var t=function(e){var t;a.fillStyle="#000",a.fillStyle=e,(e=/^((rgba)|rgb)[\D]+([\d.]+)[\D]+([\d.]+)[\D]+([\d.]+)[\D]*?([\d.]+|$)/i.exec(a.fillStyle))?(t={r:+e[3],g:+e[4],b:+e[5],a:+e[6]}).a=+t.a.toFixed(2):(e=a.fillStyle.replace("#","").match(/.{2}/g).map(function(e){return parseInt(e,16)}),t={r:e[0],g:e[1],b:e[2],a:1});return t}(e),e=function(e){var t=e.r/255,a=e.g/255,l=e.b/255,r=s.max(t,a,l),o=s.min(t,a,l),n=r-o,i=r,c=0,o=0;n&&(r===t&&(c=(a-l)/n),r===a&&(c=2+(l-t)/n),r===l&&(c=4+(t-a)/n),r&&(o=n/r));return{h:(c=s.floor(60*c))<0?c+360:c,s:s.round(100*o),v:s.round(100*i),a:e.a}}(t);M(e.s,e.v),H(t,e),b.value=e.h,h.style.color="hsl("+e.h+", 100%, 50%)",l.style.left=e.h/360*100+"%",c.style.left=v.width*e.s/100+"px",c.style.top=v.height-v.height*e.v/100+"px",g.value=100*e.a,m.style.left=100*e.a+"%"}function r(e){w&&(w.value=void 0!==e?e:y.value,w.dispatchEvent(new Event("inpLine truncated