<div class="slack">
  <nav class="teams">
    <ul class="teams__list">
      <li class="teams__item">
        <button class="teams__button teams__button--active">
          DA
        </button>
      </li>
      <li class="teams__item">
        <button class="teams__button">
          SS
        </button>
      </li>
      <li class="teams__item">
        <button class="teams__button">
          CS
        </button>
      </li>
      <li class="teams__item">
        <button class="teams__button">
          PA
        </button>
      </li>
      <li class="teams__item">
        <button class="teams__button">
          GF
        </button>
      </li>
      <li class="teams__item">
        <button class="teams__button">
          OP
        </button>
      </li>
      <li class="teams__item">
        <button class="teams__button">
          HP
        </button>
      </li>
      <li class="teams__item">
        <button class="teams__button">
          DH
        </button>
      </li>
    </ul>
  </nav>
  <div class="sidebar">
    <button class="team-menu">
      <div class="team-menu__info">
        <h1 class="team-menu__name">Dumbledore's Army</h1>
        <div class="team-menu__status">
          <span class="team-menu__username">ramenhog</span>
        </div>
      </div>
      <span class="team-menu__alarm ion-ios-bell-outline"></span>
    </button>
    <div class="threads">
      <span class="ion-chatbubble-working threads__icon"></span> All Threads
    </div>
    <div class="channels">
      <h2 class="channels__heading">
        <span>Channels <span class="channels__number">(16)</span>
        </span>
        <button class="ion-ios-plus-outline channels__add"></button>
      </h2>
      <ul class="channels__list">
        <li class="channels__item">
          <button class="channels__button"><span>general</span></button>
        </li>
        <li class="channels__item">
          <button class="channels__button"><span>random</span></button>
        </li>
        <li class="channels__item">
          <button class="channels__button"><span>self-defense</span></button>
        </li>
        <li class="channels__item">
          <button class="channels__button"><span>charms</span></button>
        </li>
        <li class="channels__item">
          <button class="channels__button"><span>potions</span></button>
        </li>
      </ul>
    </div>
    <div class="dm">
      <h2 class="dm__heading">
        <span>Direct messages <span class="dm__number">(29)</span>
        </span>
        <button class="ion-ios-plus-outline dm__add"></button>
      </h2>
      <ul class="dm__list">
        <li class="dm__item">
          <button class="dm__button dm__button--slackbot"><span>slackbot</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button dm__button--online"><span>Harry Potter</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button"><span>Hermoine Granger</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button dm__button--online dm__button--active"><span>Ron Weasley</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button dm__button--online"><span>Neville Longbottom</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button"><span>Ginny Weasley</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button dm__button--online"><span>Luna Lovegood</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button"><span>Cho Chang</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button"><span>Seamus Finnigan</span></button>
        </li>
        <li class="dm__item">
          <button class="dm__button dm__button--online"><span>Lavender Brown</span></button>
        </li>
      </ul>
    </div>
  </div>
  <div class="main">
    <header class="main__header">
      <h1 class="main__h1">Your preferences for Dumbledore's Army</h1>
      <button class="ion-android-close"></button>
    </header>
    <div class="main__content">
      <div class="main__container">
        <h2 class="main__h2">Sidebar Theme</h2>
        <section class="main__section">
          <p>Customize the look of the <strong>Dumbledore's Army</strong> team. Only you will see this.</p>
          <div class="main__themes">
            <label for="aubergine" class="radio">
              <div class="radio__img radio__img--aubergine"></div>
              <div class="radio__wrapper">
                <input id="aubergine" type="radio" name="theme" class="radio__input"/>
                aubergine
              </div>
            </label>
            <label for="hoth" class="radio">
              <div class="radio__img radio__img--hoth"></div>
              <div class="radio__wrapper">
                <input id="hoth" type="radio" name="theme" class="radio__input"/>
                hoth
              </div>
            </label>
            <label for="monument" class="radio">
              <div class="radio__img radio__img--monument"></div>
              <div class="radio__wrapper">
                <input id="monument" type="radio" name="theme" class="radio__input"/>
                monument
              </div>
            </label>
            <label for="chocolate" class="radio">
              <div class="radio__img radio__img--chocolate"></div>
              <div class="radio__wrapper">
                <input id="chocolate" type="radio" name="theme" class="radio__input"/>
                choco mint
              </div>
            </label>
            <label for="ochin" class="radio">
              <div class="radio__img radio__img--ochin"></div>
              <div class="radio__wrapper">
                <input id="ochin" type="radio" name="theme" class="radio__input"/>
                ochin
              </div>
            </label>
            <label for="workhard" class="radio">
              <div class="radio__img radio__img--workhard"></div>
              <div class="radio__wrapper">
                <input id="workhard" type="radio" name="theme" class="radio__input"/>
              work hard
            </label>
          </div>
        </section>
        <section class="main__section">
          <h3 class="main__h3">Accessible Themes</h3>
          <div class="main__themes">
            <label for="solanum" class="radio">
              <div class="radio__img radio__img--solanum"></div>
              <div class="radio__wrapper">
                <input id="solanum" type="radio" name="theme" class="radio__input"/>
                Protanopia &amp; Deuternopia
              </div>
            </label>
            <label for="brinjal" class="radio">
              <div class="radio__img radio__img--brinjal"></div>
              <div class="radio__wrapper">
                <input id="brinjal" type="radio" name="theme" class="radio__input"/>
              tritanopia
            </label>
          </div>
        </section>
        <section class="main__section">
          <h3 class="main__h3">Custom Theme</h3>
          <div class="main__color-pickers">
            <fieldset class="main__field">
              <label for="column-bg" class="main__label">
                Column BG
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--column-bg">
                    <input id="column-bg" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="column-bg" />
                </div>
              </label>
            </fieldset>
            <fieldset class="main__field">
              <label for="menu-bg-hover" class="main__label">
                Menu BG Hover
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--menu-bg-hover">
                    <input id="menu-bg-hover" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="menu-bg-hover" />
                </div>
              </label>
            </fieldset>
            <fieldset class="main__field">
              <label for="active-item" class="main__label">
                Active Item
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--active-item">
                    <input id="active-item" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="active-item" />
                </div>
              </label>
            </fieldset>
            <fieldset class="main__field">
              <label for="active-item-text" class="main__label">
                Active Item Text
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--active-item-text">
                    <input id="active-item-text" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="active-item-text" />
                </div>
              </label>
            </fieldset>
            <fieldset class="main__field">
              <label for="hover-item" class="main__label">
                Hover Item
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--hover-item">
                    <input id="hover-item" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="hover-item" />
                </div>
              </label>
            </fieldset>
            <fieldset class="main__field">
              <label for="text-color" class="main__label">
                Text Color
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--text-color">
                    <input id="text-color" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="text-color" />
                </div>
              </label>
            </fieldset>
            <fieldset class="main__field">
              <label for="active-presence" class="main__label">
                Active Presence
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--active-presence">
                    <input id="active-presence" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="active-presence" />
                </div>
              </label>
            </fieldset>
            <fieldset class="main__field">
              <label for="mention-badge" class="main__label">
                Mention Badge
                <div class="main__color-field">
                  <div class="main__input-wrapper main__input-wrapper--mention-badge">
                    <input id="mention-badge" type="color" class="main__colorpicker"/>
                  </div>
                  <input class="main__hexcode" maxlength="7" data-color="mention-badge" />
                </div>
              </label>
            </fieldset>
          </div>
          <fieldset class="main__field--full">
            <label class="main__label">
              Copy and paste these values to share your custom theme with others:
              <input id="share-colors" name="share-colors" class="main__share-input" />
            </label>
          </fieldset>
        </section>
      </div>
    </div>
  </div>
</div>
@import url('https://fonts.googleapis.com/css?family=Lato:300,400,700,900');

$white: #fff;

$padding: 18px;
$item-spacing: 8px;

%field {
  text-transform: uppercase;
  font-size: 1rem;
  font-weight: 400;
  color: #555459;
  padding: 0 0.5rem;
  font-family: "Consolas", monaco, courier, monospace;
}

:root {
  --column-bg: #ae0001;
  --menu-bg-hover: #680001;
  --active-item: #D3A625;
  --active-item-text: #680001;
  --hover-item: #BE0002;
  --text-color: #FFFFFF;
  --active-presence: #00FFBA;
  --mention-badge: #DE4C0D;
}

* {
  box-sizing: border-box;
}

html,
body {
  position: relative;
  width: 100%;
  height: 100%;
  font-size: 17px;
  font-family: "Lato", Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
  color: #555459;
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  color: #2C2D30;
}

strong {
  font-weight: 700;
}

button {
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  font-size: inherit;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  
  &:focus,
  &:hover,
  &:active {
    outline: none;
  }
}

.slack {
  width: 100%;
  height: 100%;
  display: flex;
  
  @supports (display: grid) {
    display: grid;
    grid-template-columns: 75px 250px 1fr;
    grid-template-rows: 1fr;
  }
}

.teams {
  width: 75px;
  position: relative;
  height: 100%;
  background: var(--column-bg, #ae0001);
  
  &__list {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    background-color: rgba(#000, 0.4);
  }
  
  &__item {
    counter-increment: team-counter;
    font-size: 0.8rem;
    color: $white;
    text-align: center;
    
    &:after {
      content: '⌘'counter(team-counter);
    }
  }
  
  &__button {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 1.4rem 0 0.5rem;
    width: 40px;
    height: 40px;
    background: rgba($white, 0.1);
    text-decoration: none;
    border-radius: 5px;
    line-height: 1;
    color: rgba($white, 0.6);
    font-size: 20px;
    font-weight: 700;
    
    &--active {
      color: $white;
      background: rgba($white, 0.4);
      
      &:before {
        content: "";
        position: absolute;
        left: -20px;
        top: 0;
        width: 7px;
        height: 100%;
        background: $white;
        opacity: 0.7;
        border-radius: 3px;
      }
    }
    
    &:hover {
      box-shadow: 0 0 0 5px rgba($white, 0.2);
    }
  }
}

.team-menu {
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: $padding $padding 0;
  
  &:hover {
    background: var(--menu-bg-hover, #680001);
  }
  
  &__name {
    font-size: 18px;
    font-weight: 900;
    color: var(--text-color, $white);
  }
  
  &__status {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-color, $white);
    
    &:before {
      content: "";
      display: inline-block;
      margin-right: 0.2rem;
      width: 9px;
      height: 9px;
      background: var(--active-presence, #00FFBA);
      border-radius: 50%;
    }
  }
  
  &__username {
    opacity: 0.6;
  }
  
  &__alarm {
    display: flex;
    font-size: 25px;
    color: var(--text-color, $white);
  }
}

.sidebar {
  position: relative;
  z-index: 1;
  width: 250px;
  background: var(--column-bg, #ae0001);
  color: var(--text-color, $white);
}

.threads {
  margin: 0.6rem 0;
  padding: 0 $padding;
  opacity: 0.7;
  
  &__icon {
    margin-right: 3px;
  }
}

.channels,
.dm {
  margin: 0.5rem 0 1.5rem;
  padding-right: $padding;
  
  &__button,
  &__heading {
    padding: 0 0 0 $padding;
    width: 100%;
    color: var(--text-color, $white);
  }
  
  &__number {
    display: inline-block;
    position: relative;
    top: -1px;
    margin-left: 2px;
    font-size: 13px;
    opacity: 0.5;
  }
  
  &__add {
    font-size: 20px;
    color: var(--text-color, $white);
  }
  
  &__heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
    line-height: 2.1;
    text-transform: uppercase;
    opacity: 0.6;
  }
  
  &__button {
    padding: 4px 0 4px $padding;
    display: flex;
    align-items: center;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    
    span {
      opacity: 0.7;
    }
    
    &:before {
      padding: 0 0.3rem;
    }
    
    &:hover {
      background: var(--hover-item, #BE0002);
    }
    
    &--active,
    &--active:hover {
      background: var(--active-item, #D3A625);
      color: var(--active-item-text, #680001);
    }
    
  }
}

.channels {
  &__button {
    &:before {
      content: "#";
      opacity: 0.5;
    }
  }
}

.dm {
  &__button {
    &:before {
      content: "\f401";
      margin-right: 3px;
      font-family: "Ionicons";
      font-size: 0.6rem;
    }
    
    &--online {
      &:before {
        content: "\f21b";
        color: var(--active-presence, #00FFBA);
      }
    }
    
    &--slackbot {
      &:before {
        content: "\f141";
        color: var(--active-presence, #00FFBA);
        font-size: 0.75rem;
      }
    }
    
    &--active {
      &.dm__button--online,
      &.dm__button--slackbot {
        &:before {
          color: var(--active-item-text, #680001);
        }
      }
    }
  }
}

.main {
  position: relative;
  height: 100%;
  flex: 1;
  
  &__header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: $padding;
    box-shadow: 0 1px 4px rgba(0,0,0,.15);
    background: $white;
  }
  
  &__h1 {
    flex: 1;
    font-size: 1.4rem;
    font-weight: 900;
    text-align: center;
  }
  
  &__h2 {
    font-size: 1.5rem;
    font-weight: 900;
  }
  
  &__h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 900;
  }
  
  &__content {
    position: relative;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: scroll;
  }
  
  &__container {
    padding: 2rem;
    margin: 0 auto;
    width: 55%;
    max-width: 860px;
    min-width: 800px;
  }
  
  &__section {
    padding: 2rem 0 0;
    border-bottom: 1px solid #DDD;
    
    &:last-of-type {
      border-bottom: 0;
    }
  }
  
  &__field {
    position: relative;
    margin-top: 1rem;
    width: 25%;
    max-width: 25%;
    min-width: 25%;
    padding-right: $padding;
    
    &--full {
      max-width: initial;
      width: 100%;
      margin-top: 2rem;
    }
  }
  
  &__label {
    font-weight: 700;
    display: block;
    font-size: 1.05rem;
    line-height: 1.5rem;
  }
  
  &__color-pickers {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    width: 98%;
  }
  
  &__color-field {
    width: 100%;
    display: flex;
    margin-top: 0.25rem;
    border: 1px solid #C5C5C5;
    border-radius: .25rem;
    padding: 0.25rem;
  }
  
  &__themes {
    display: flex;
    flex-wrap: wrap;
    margin-top: 1rem;
  }
  
  &__colorpicker {
    visibility: hidden;
  }
  
  &__hexcode {
    @extend %field;
    flex: 1;
    border: none;
    min-width: 0;
    
    &:focus {
      outline: none;
    }
  }
  
  &__share-input {
    @extend %field;
    display: block;
    width: 100%;
    padding: 0 .75rem;
    margin: 0.25rem 0 5rem;
    border: 1px solid #C5C5C5;
    border-radius: .25rem;
    height: 40px;
    line-height: 40px;
    
    &:hover,
    &:focus,
    &:active {
      border-color: #2780F8;
      outline: none;
    }
    
    &:focus {
      box-shadow: 0 0 7px rgba(39,128,248,.15);
    }
  }
  
  &__input-wrapper {
    width: 1.9rem;
    height: 1.9rem;
    display: inline-block;
    padding: 0;
    cursor: pointer;
    border: 1px solid #C5C5C5;
    border-radius: .25rem;
    
    &--column-bg {
      background: var(--column-bg, #ae0001);
    }
    
    &--menu-bg-hover {
      background: var(--menu-bg-hover, #680001);
    }
    
    &--active-item {
      background: var(--active-item, #D3A625);
    }
    
    &--active-item-text {
      background: var(--active-item-text, #680001);
    }
    
    &--hover-item {
      background: var(--hover-item, #BE0002);
    }
    
    &--text-color {
      background: var(--text-color, $white);
    }
    
    &--active-presence {
      background: var(--active-presence, #00FFBA);
    }
    
    &--mention-badge {
      background: var(--mention-badge, #DE4C0D);
    }
  }
}

.radio {
  margin: 0.5rem 4rem 2rem 0;
  width: 130px;
  cursor: pointer;
  text-transform: capitalize;
  
  &__input {
    min-width: 15px;
    margin: 0 0.75rem 0 0;
    min-height: 1.5rem;
    line-height: 1.5;
  }
  
  &__wrapper {
    display: flex;
    line-height: 1.5;
  }
  
  &__img {
    position: relative;
    border-radius: 6px;
    margin: 0 0 0.5rem;
    box-shadow: 0 1px 1px rgba(0,0,0,.2);
    background-size: cover;
    background-repeat: no-repeat;
    
    &:after {
      content: "";
      display: block;
      padding-top: 60/110 * 100%;
      height: 0;
    }
    
    &--solanum {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/solanum.png');
    }
    &--chocolate {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/chocolate.png');
    }
    &--aubergine {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/aubergine.png');
    }
    &--ochin {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/ochin.png');
    }
    &--brinjal {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/brinjal.png');
    }
    &--hoth {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/hoth.png');
    }
    &--workhard {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/workhard.png');
    }
    &--monument {
      background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/60485/monument.png');
    }
  }
}

View Compiled
const colorPickers = document.querySelectorAll('.main__colorpicker');
const hexCodeInputs = document.querySelectorAll('.main__hexcode');
const shareInput = document.getElementById('share-colors');
const radioInputs = document.querySelectorAll('.radio__input');

function handleColorPickerUpdate() {
  document.documentElement.style.setProperty(`--${this.id}`, this.value);
  const hexcodeDiv = document.querySelectorAll(`.main__hexcode[data-color='${this.id}']`);
  
  hexcodeDiv[0].value = this.value;
  generateShareString();
}

colorPickers.forEach(input => {
  input.addEventListener('change', handleColorPickerUpdate);
});

function updateShareInput(newStr, presetThemeId) {
  if (!newStr) newStr = '#4D394B,#3E313C,#4C9689,#FFFFFF,#3E313C,#FFFFFF,#38978D,#EB4D5C';
  
  if (!presetThemeId) presetThemeId = 'aubergine';
  
  shareInput.value = newStr;
  const evt = new CustomEvent('change');
  shareInput.dispatchEvent(evt);
  
  localStorage.setItem('slack-demo-theme', newStr);
  if (presetThemeId) {
    document.getElementById(presetThemeId).checked = true;
    localStorage.setItem('slack-demo-theme-id', presetThemeId);
  } else {
    localStorage.removeItem('slack-demo-theme-id');
  }
}

function generateShareString() {
  let shareArr = [];

  colorPickers.forEach(input => {
    const colorHex = window.getComputedStyle(document.body).getPropertyValue(`--${input.id}`).trim();
    input.value = colorHex;

    const hexcodeDiv = document.querySelectorAll(`.main__hexcode[data-color='${input.id}']`);

    hexcodeDiv[0].value = colorHex;
    shareArr.push(colorHex);
  });
  const themeStr = shareArr.join(',');
  
  if (shareInput.value.toUpperCase() !== themeStr.toUpperCase()) updateShareInput(themeStr);
}

function handleShareUpdate() {
  const newShareArr = shareInput.value.split(',');
  
  newShareArr.forEach((hexcode, i) => {
    const trimmedHex = hexcode.trim();
    const colorPicker = colorPickers[i];
    
    if (colorPicker.value === trimmedHex || !/^#[0-9a-f]{3}[0-9a-f]{3}?$/i.test(trimmedHex)) return;
    colorPicker.value = trimmedHex;
    const evt = new CustomEvent('change');
    colorPicker.dispatchEvent(evt);
  });
}

shareInput.addEventListener('keyup', handleShareUpdate);
shareInput.addEventListener('change', handleShareUpdate);

function handleHexCodeInputChange() {
  const hexCode = this.value;
  if (/^#[0-9a-f]{3}[0-9a-f]{3}?$/i.test(hexCode)) { 
    const colorPicker = document.getElementById(this.getAttribute('data-color'));
    colorPicker.value = hexCode;
    const evt = new CustomEvent('change');
    colorPicker.dispatchEvent(evt);
  }
}

hexCodeInputs.forEach(input => {
  ['keyup', 'change'].forEach(evt => {
    input.addEventListener(evt, handleHexCodeInputChange);
  });
});

function updateTheme() {
  let hexString;
  
  switch (this.id) {
    case 'aubergine':
      hexString = '#4D394B,#3E313C,#4C9689,#FFFFFF,#3E313C,#FFFFFF,#38978D,#EB4D5C';
      break;
    case 'hoth':
      hexString = '#F8F8FA,#F8F8FA,#CAD1D9,#FFFFFF,#FFFFFF,#383F45,#60D156,#FF8669';
      break;
    case 'monument':
      hexString = '#0D7E83,#076570,#F79F66,#FFFFFF,#D37C71,#FFFFFF,#F79F66,#F15340';
      break;
    case 'chocolate':
      hexString = '#544538,#42362B,#5DB09D,#FFFFFF,#4A3C30,#FFFFFF,#FFFFFF,#5DB09D';
      break;
    case 'ochin':
      hexString = '#303E4D,#2C3849,#6698C8,#FFFFFF,#4A5664,#FFFFFF,#94E864,#78AF8F';
      break;
    case 'workhard':
      hexString = '#4D5250,#444A47,#D39B46,#FFFFFF,#434745,#FFFFFF,#99D04A,#DB6668';
      break;
    case 'solanum':
      hexString = '#4F2F4C,#452842,#8C5888,#FFFFFF,#3E313C,#FFFFFF,#D0FF00,#889100';
      break;
    case 'brinjal':
      hexString = '#4F2F4C,#452842,#8C5888,#FFFFFF,#3E313C,#FFFFFF,#00FFB7,#DE4C0D';
      break;
  }
  
  updateShareInput(hexString, this.id);
}

radioInputs.forEach(radio => {
  radio.addEventListener('click', updateTheme);
});

updateShareInput(localStorage.getItem('slack-demo-theme'), localStorage.getItem('slack-demo-theme-id'));
View Compiled

External CSS

  1. https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css

External JavaScript

This Pen doesn't use any external JavaScript resources.