NotAnIssue, Keyword highlighting, partial match

Description of the Issue

In example I use NPP to check extensive log files, and often it gets job done, when necessary to find error messages in such files.
My question will be - Is there a way to partialy match certain keywords and color them?
Maybe there is an option to use wildcards, to extend highlighting funtionality.

Steps to Reproduce the Issue

1. Navigate to URL settings.
2. Add "Exception" keyword to one one groups.
3. Check Prefix mode.

Expected Behavior

Keywords like: java.io.FileNotFoundException, com.btr.proxy.util.ProxyException will get their color, which matches with "Exception" rule from UDL settings.

• MATCH - java.io.FileNotFoundException
• MATCH - com.btr.proxy.util.ProxyException
• MATCH - Exception error: ...

Actual Behavior

Only exactly matching words are being marked, skipping ones which contains "Exception" text, while these starts with something else.

• SKIPPED - java.io.FileNotFoundException
• SKIPPED - com.btr.proxy.util.ProxyException
• MATCH - Exception error: ...

NPP v7.9.3 x64.

The issue identifies UDL settings and Prefix mode, but names no source file or test. Start by locating the keyword-highlighting implementation and its tests, then determine how partial matches should interact with prefixes. Done means terms containing “Exception,” including the listed Java class names, receive the configured color without changing exact-match behavior unexpectedly.