<button class="button is-disabled">
Primaarne
</button>
<button class="button button--secondary is-disabled">
Sekundaarne
</button>
<button class="button button--contrast is-disabled">
Kontrastne
</button>
<button class="button button--triarity is-disabled">
Tertsiaarne
</button>
{
"state": "is-disabled"
}