Test step.
- Original Project Download(Click to download) and Install => OK
“My General Plug-in” menu appears in the “EDIT” menu of Glyphs. - Modify(Click to jump to reference forum) “list.pinfo” (Click to download modified my project) => BAD
Only add the following paragraph to “list.pinfo”:
<key>Principal Classes</key>
<array>
<string>____PluginClassName____</string>
</array>