Is the full XML schema of the context file documented somewhere?

Question

When generating a context file using OWASP Zap's Desktop UI (for Windows), I noticed a parameter from the UI missing in the exported context file. Is the full XML schema of the context file documented somewhere so we can add elements in manually?

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<configuration>
    <context>
        <name>Default Context</name>
        <desc/>
        <inscope>true</inscope>
        <incregexes>https://mysite</incregexes>
        <incregexes>https://mysite/.*</incregexes>
        <tech>
            <include>Db</include>
            <include>Db.CouchDB</include>
            <include>Db.Firebird</include>
            <include>Db.HypersonicSQL</include>
            <include>Db.IBM DB2</include>
            ...