new TextFormat to a TextField and determines if &lt;code>embedFonts&lt;/code> should be &lt;code>true&lt;/code> or &lt;code>false&lt;/code>.
        
        @param referenceName: Reference name of font.
        @param field_txt: TextField or {@link CoreTextField} to apply the TextFormat.
        @return Returns &lt;code>true&lt;/code> if TextFormat by &lt;code>referenceName&lt;/code> was successfully found; otherwise &lt;code>false&lt;/code>.
        @usageNote Automatically sets &lt;code>embedFonts&lt;/co