The vivo X30 unveiled last December in Black, Peach and Light Blue shades gets a new gradient paint job - Rainbow Shadow. As already evident from the name, the Rainbow Shadow variant is inspired by the rainbow, and while it does look similar to the Light Blue version, it actually changes colors to pink, orange, blue and green when you look at it at different angles, which is possible due to the AG frosting process. This process also adds the visual effects of smoke and soft mist to the back panel, in addition to a "delicate and tactile" feel. The Rainbow Shadow variant of the...
Source: https://www.gsmarena.com/vivo_x30_rainbow_shadow_price-news-42635.php