How can I change a filetype’s “Kind” value in the Finder?
/path/to/default/app/Contents/Info.plist → CFBundleDocumentTypes → CFBundleTypeName:
<key>CFBundleTypeExtensions</key>
<array>
<string>adb</string>
<string>ads</string>
</array>
<key>CFBundleTypeIconFile</key>
<string>ADA</string>
<key>CFBundleTypeName</key>
<string>ADA source</string>
Modifying files inside application bundles invalidates the code signature and changes aren't necessarily respected by updates.