clear, help
亮 centers on clarity and illumination, both literal and figurative: something clear, bright, or made plain. The sense of help is a natural extension of bringing clarity or light to a situation.
亮 is thought to combine 亠 (a simplified head or top) with 口 (mouth) and 儿 (legs) under 冖 (cover), possibly depicting a person speaking clearly or standing out. The exact historical development is uncertain.
Picture a person (儿) standing under a cover (冖) with a clear voice (口) and a bright idea (亠 as a light bulb). Together they make 亮: clear and helpful.
For リョウ, imagine a clear, bright light shining on a row (リョウ) of helpers: row -> リョウ, and the light makes everything clear.