ABAP Development Tools has a Java front end and cannot recognize ABAP. So how is ABAP syntax highlighting implemented in ADT?

When opening a report for the first time, the code displayed in ADT is not syntax highlighted,

At this time there is a HTTP request to the ABAP background: / SAP/BC/adt abapsource/parsers/RND/grammar? head=true

Request a pad file:

Implemented in “WebIDE” implemented via browser [How ABAP syntax highlight is Implemented in “WebIDE” launched via browser]Blogs.sap.com/2018/03/09/…)

After the Pad file is loaded and rendered by ADT, the syntax is highlighted:

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