diff -r 706b34d0ce60 -r 32a1696ca93a hedgewars/uConsts.pas
--- a/hedgewars/uConsts.pas	Tue May 15 23:47:07 2018 +0200
+++ b/hedgewars/uConsts.pas	Wed May 16 10:11:00 2018 +0200
@@ -194,7 +194,13 @@
 
     // do not change this value
     cDefaultZoomLevel = 2.0;
+
+    cBaseChatFontHeight = 12;
     cDefaultChatScaleLevel = 1.0;
+    cChatScaleRelDelta = 0.1;
+    cMinChatScaleValue = 0.8;
+    cMaxChatScaleValue = 20;
+
     cDefaultUIScaleLevel = 1.0;
 
     // game flags