O
I think you're over thinking this.
Will some take offence? Sure, but there's no pleasing some.
And as for dedaulting white, maybe it's just me, but I create my own image of characters based on their feel, regardless of how many descriptors you give. If the character feels white then I see a white character in my head. If they feels Chinese then that's what I see.
I would use descriptors like forest loam or freshly tilled earth or riverbank clay, because those are positive associations for me as a nature lover...but would those be positive associations for others? Am I overthinking this?
And the majority of characters won't be described in terms of skin color, but some characters are just going to be around for a long time and are really important to the story, so I want to describe them well. Honestly, if I don't say otherwise readers are going to assume them to be white, and I don't want that, because I don't picture them that way.
I think you're over thinking this.
Will some take offence? Sure, but there's no pleasing some.
And as for dedaulting white, maybe it's just me, but I create my own image of characters based on their feel, regardless of how many descriptors you give. If the character feels white then I see a white character in my head. If they feels Chinese then that's what I see.