表情符号提案

向Unicode联盟正式申请添加新表情符号的文件，依据预期使用量和独特性等标准进行评审。

Anyone can propose a new emoji by submitting a formal document to the Unicode Consortium. Proposals must include selection factors like expected usage frequency, image distinctiveness, completeness (filling a gap), and whether existing emoji or ZWJ sequences can already represent the concept.

The process typically takes 1-2 years from proposal to release. Proposals go through review by the Emoji Subcommittee, then the Unicode Technical Committee, before final approval.

Notable successful proposals include the accessibility emoji set (wheelchair, hearing aid, etc.), the pirate flag, and many cultural food items.