Vaisesika Sūtra 1.1.16

dravyāśrayya-guṇavān saṁyoga-vibhāgeṣu akāraṇam anapekṣa iti guṇa-lakṣaṇam ॥16॥

Qualities take shelter in dependent combination and disjunction of substances, uncaused by the mind. This is the characteristics of qualities (guna).

"uncaused by the mind" - indicates a reality that is independent of the mind.