doccano/frontend/components/tasks/toolbar/buttons/ButtonClear.vue

<template>
  <v-tooltip bottom>
    <template #activator="{ on }">
      <v-btn
        icon
        v-on="on"
        @click="$emit('click:clear')"
      >
        <v-icon>
          {{ mdiDeleteOutline }}
        </v-icon>
      </v-btn>
    </template>
    <span>Clear labels</span>
  </v-tooltip>
</template>

<script>
import { mdiDeleteOutline } from '@mdi/js'

export default {
  data() {
    return {
      mdiDeleteOutline
    }
  },
}
</script>