How can I change a filetype’s “Kind” value in the Finder?
/path/to/default/app/Contents/Info.plist → CFBundleDocumentTypes → CFBundleTypeName:

&lt;key&gt;CFBundleTypeExtensions&lt;/key&gt;
&lt;array&gt;
    &lt;string&gt;adb&lt;/string&gt;
    &lt;string&gt;ads&lt;/string&gt;
&lt;/array&gt;
&lt;key&gt;CFBundleTypeIconFile&lt;/key&gt;
&lt;string&gt;ADA&lt;/string&gt;
&lt;key&gt;CFBundleTypeName&lt;/key&gt;
&lt;string&gt;ADA source&lt;/string&gt;


Modifying files inside application bundles invalidates the code signature and changes aren't necessarily respected by updates.