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Use system setting as locale

Options

Use CJK Compatibility Ideographs

Japan
South Korea
CNS 11643

Use Characters on Supplementary Planes

Don't use
Only use UnihanCore2020 and Adobe-Japan1
All

Ideographic Variation Sequences

Priority	Use
	Use Adobe-Japan1 IVS
	Use Macau Supplementary Character Set IVS

Others

Convert wrong/error variants that are not unifiable on Unicode (e.g.: 秘 → 祕)