styles.css

:root {
  --base-text-color: #495057;
  --base-bg-color: #fff;
  --text-active-color: #3b82f6;
  --text-error-color: #e24c4c;
  --active-bg-color: #fafafa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --base-text-color: rgba(255, 255, 255, 0.87);
    --base-bg-color: #040d19;
    --text-active-color: #93c5fd;
    --text-error-color: #e24c4c;
    --active-bg-color: #1d2530;
  }
}

* {
  box-sizing: border-box;
}

body {
  font-size: 14px;
  line-height: 1.5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--base-text-color);
  background-color: var(--base-bg-color);
  margin: 0;
}

.wrapper {
  width: 230px;
  max-width: 100%;
  padding: 10px;
  max-height: 450px;
  overflow: auto;
}

/* Extensions list */

.extensions {
  display: flex;
  flex-direction: column;
  list-style: none;
  margin: -10px;
  padding: 0;
}

.extensions__item {
  display: flex;
  width: 100%;
  padding: 5px;
  cursor: pointer;
  align-items: center;
  gap: 5px;
}

.extensions__item:hover {
  background: var(--active-bg-color);
}

.extensions__item--active {
  color: var(--text-active-color);
}

.extensions__item--active .extensions__icon {
  filter: grayscale(0);
}

.extensions__icon {
  width: 16px;
  height: auto;
  border: 0;
  object-fit: contain;
  filter: grayscale(1);
}

.extensions__name {
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}

/* Note */

.note {
  font-weight: bold;
  padding: 5px 0;
}

.note--error {
  color: var(--text-error-color);
}