``mime``optional, string,
enum[PLAIN,HTML] The log can have a HTML representation where the HTML content is a colored version consider the log level for the browser where CSS is required.
pre.log                         {font-family:"Lucida Console",monospace;font-size:12px;line-height:1.1em;margin-left:2px;padding-left:0}
.log_error                      {color:red;}
.log_warn                       {color:tomato;}
.log_info                       {color:black;}
.log_stderr                     {color:red;}
.log_debug                      {color:darkgreen;}
.log_debug2                     {color:#408040;}
.log_debug3                     {color:#808080;}
.log_debug4                     {color:#8080FF;}
.log_debug5                     {color:#8080FF;}
.log_debug6                     {color:#8080FF;}
.log_debug7                     {color:#8080FF;}
.log_debug8                     {color:#8080FF;}
.log_debug9                     {color:#a0a0a0;}
PLAIN