What is the problem with WeChat Mini Programs's use of sprite?

at present, WeChat Mini Programs is developed with mpvue. He has only made a sprite image, and he wants to use the icon above to do icon, for input boxes and the like, but Mini Program does not support background images. Besides the centralized solution mentioned on the official website, is there any good solution?

Nov.30,2021

does WeChat Mini Programs not support background images?

I think so. Most of them are css style

.

Mini Program supports background images, but does not support the introduction of external styles, which can be done inline

<view style="background-image:url('')">
</view>

support, only network pictures and base64

are supported.
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