How to set the background of WeChat chat on vivo x9 mobile phone?

Go to WeChat-Me-Settings-Chat-Chat background and change it.

1.vivo x9 Appearance introduction:

Vivo X9 adopts aluminum alloy integrated design, adopts the fourth generation mirror sandblasting process, and sprays 10 nanometer superfine 405 zirconium sand, with shining color. The middle frame and the back are integrally formed, and the natural radian of the whole machine is rounded and transitional.

The screen adopts the fifth generation Corning glass, which makes the touch more comfortable and improves the anti-fall performance; Ultra-narrow bezel design, 1.59mm ultra-narrow bezel. The back shell of vivo X9 adopts all-metal streamlined fuselage design, and the antenna moves from one end to the other, making it into a dome U-shape.

2.vivo x9 features:

VivoX9 front will be equipped with 20 million cameras, two front cameras, 20 million and 8 million pixels, focusing on self-timer function. The new X9 will be equipped with Sony IMX376 sensor jointly developed with Sony, and equipped with 8 million fuzzy cameras. Its main function is to blur the background and highlight the subject of shooting. 1/2.8 inches, aperture F2.0, 5P lens, supporting dual-camera blur, dynamic photos, beauty and HDR.

The rear camera is160,000 pixels, 1/2.8 inches, with an aperture of F2.0 (the specific model is unknown for the time being), covered with sapphire glass, and supports PDAF phase focusing, slow motion, HDR, panoramic mode, night scene mode, ultra-clear image quality, document correction, motion stability, professional photography, time-lapse photography and beauty.