FreeGameDev

How can you add emojis to the title of a STK Server?

The sample XML contains this:

{l Code}: {l Select All Code}

    <!-- Name of server, encode in XML if you want to use unicode characters. -->
    <server-name value="STK Server" />

I don't understand what they mean.
Already tried just copy pasting the emojis and nothing shows up, and also I get this error:

{l Code}: {l Select All Code}

StringUtils: wideToUtf8 error: Invalid code point, incompleted string

{l Code}: {l Select All Code}

<server-name value="&#128165; BATTLE CATCH October 2023 &#128165;" />

don't forget the semicolon, not sure if hex values are ok there