comp.vue

<template>
  <q-inner-loading
    :color="color"
    :size="size"
    v-bind="$attrs"
    v-on="$listeners"
  >
    <slot></slot>
  </q-inner-loading>
</template>

<script>
export default {
  props: {
    color: {
      type: String,
      default: 'primary'
    },
    size: {
      type: String,
      default: '3em'
    }
  }
}
</script>

<style>
</style>