iphone - Cocos2D CCLabelTTF diplays solid rectangle -

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i need implement debug layer in ios application getting feedback testers.

found this solution on github want: transparent layer on top of application, can print debug info.

the cocos2d-debug-layer uses cclabelttf display debug messages.

i have inserted api code , works expected. problem messages appear solid rectangle, while appear correctly.

i have tried change cclabelttf’s color, , has effect, changes text , background color also. if don’t change color (leave defaults), prints white rectangle.

i have found cclabelttf’s background cannot changed. cannot set background transparent.

i use cocosdebuglayer this:

initializing in gamescene.m:

+(id) scene {     ccscene *scene = [ccscene node];     seraphingame *layer = [seraphingame node];     [scene addchild: layer];      //add debug layer     cocosdebuglayer *debuglayer = [cocosdebuglayer node];     [scene addchild:debuglayer z:10000];      [[nsnotificationcenter defaultcenter] postnotificationname:@"logmessage" object:@"init scene"];      return scene; }

sending log messages several places in same .m file: 

[[nsnotificationcenter defaultcenter] postnotificationname:@"logmessage" object:@"other log message"];

the first line printed right: "init scene"

but thereafter, prints solid blocks.

the label's font helvetica available default. can not problem, because messages appear right not.

this code creating cclabelttfs:

-(void)logmessage:(nsnotification*)notification {     nsstring *message = [notification object];     cclabelttf *logmsg = [cclabelttf labelwithstring:message fontname:@"helvetica" fontsize:12];     [logmsg setanchorpoint:cgpointzero];     [self addchild:logmsg];     [logmessages addobject:logmsg];     [logmsg release];     [self updatelog]; }


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