That process was solidified by the OnePlus 6T launch in October. Aaron Brown at T3:If the latest OnePlus 7 leak is accurate, we can expect to see three new colour finishes – Black Yellow, Black Purple, and Cyan Grey. Firstly, these will not be the first OnePlus handsets to appear outside of a black/silver/white color scheme. Assuming Taniyama-Shimura, these would be the first colourful OnePlus handsets available at launch. Previously a OnePlus spokesperson has said that "OnePlus is a separate company from Oppo.
Source: Forbes March 17, 2019 00:33 UTC