The vivo S10 and S10 Pro are about to be announced and we already have a good idea of what the Pro model would look like and what hardware it would offer. So the Google Play Console listing comes as more of a confirmation of what we've heard so far. However, a video showcasing an interesting new feature on the S10 Pro surfaced online. Allegedly, the S10 Pro is in the video with a familiar matte back with blue gradient color but with a twist. Upon exposure to UV light, the back turns into a darker shade of blue so you can even draw on the surface. The effect, however, tapers off in about...
Source: https://www.gsmarena.com/vivo_s10_pro_to_come_with_uv_lightsensitive_paint_job_specs_leak_via_google_play_console-news-50004.php