Have a look into your PlaneShift Crystal Blue\data\options folder
There is a file named chatbubbles.xml
- <!-- Supported attributes for <chat>: type, color[R,G,B], shadow[R,G,B], outline[R,G,B], align, effectPrefix
-->
- <!-- Supported Chat Types: say, tell, group, guild, auction, shout, me, tellself, my, npc, npc_me, npc_my, npc_narrate
-->
- <!-- Supported Align Types: left, center, right
-->
- <chat_bubbles maxLineLen="24" shortPhraseCharCount="9" longPhraseLineCount="5">
<chat type="say" colorR="186" colorG="168" colorB="126" shadowR="108" shadowG="98" shadowB="73" align="left" effectPrefix="chatbubble_" />
<chat type="tell" colorR="38" colorG="196" colorB="15" shadowR="22" shadowG="66" shadowB="9" align="left" effectPrefix="chatbubble_" />
<chat type="group" colorR="108" colorG="57" colorB="222" shadowR="46" shadowG="24" shadowB="94" align="left" effectPrefix="chatbubble_" />
<chat type="guild" colorR="55" colorG="89" colorB="213" shadowR="22" shadowG="36" shadowB="87" align="left" effectPrefix="chatbubble_" />
<chat type="shout" colorR="188" colorG="12" colorB="12" shadowR="87" shadowG="5" shadowB="5" align="left" effectPrefix="chatbubble_" />
<chat type="npc" colorR="189" colorG="12" colorB="174" shadowR="86" shadowG="5" shadowB="80" align="left" effectPrefix="chatbubble_" />
</chat_bubbles>
Just delete the line or comment them