Explanation for simplification of 遙
People outside Chinese region may think any type of character form change in Mainland China are &quot;simplifications&quot;, which is not true. The example in your question is actually glyph differences, which are called &quot;New Character Forms&quot; or &quot;Xin Zixing&quot;. It regulates the orthodox form of parts of glyphs, while &quot;simplification&quot; deals with &quot;which parts are used to form a character&quot;.