Thanks for putting this package together!

Background
Many icon packs have explicit filled and outlined styles of icons, (font-awesome, material). For this reason, many people may think that this icon pack cannot easily have filled icons, but I just discovered it can be done, easily with css:

<template>
  <div>
    <HeartIcon v-bind:class="{ 'is-filled': enabled }" />
  </div>
</template>

<style>
.is-filled {
   fill: red;
}
</style>

I think having this method of making an icon filled either displayed in the documentation or built into the library.

Most people searching for an icon pack may skip over this awesome collection, thinking that implementing additional filled icons would be too hard.