@Override
	protected void decompilerActionPerformed(DecompilerActionContext context) {

		ClangToken token = context.getTokenAtCursor();
		context.getDecompilerPanel().addSecondaryHighlight(token);
	}
Sets the secondary highlight on the selected token

@see ClangHighlightController
Ghidra/Features/Decompiler/src/main/java/ghidra/app/plugin/core/decompile/actions/SetSecondaryHighlightAction.java