Select Graphic Rendition codes are a subset of the ANSI escape sequence codes and are used to add color and font attributes to the log console when running scripts.  All sequences start with ESC [ (the control sequence introducer) followed by zero (0) or more codes separated by semicolons and closed with a lower case m.  When scripting this looks like \x1b[33m which would set the foreground text color yellow. See this example script:

// log a message using bold, bright red text on a bright white background and then reset the formatting
console.log('\x1b[1;91;107mTHIS IS VERY IMPORTANT TEXT!\x1b[0m and this is not...');

As you can see, the codes can be strung out separated by semicolons which makes coding the log entries very simple.  See the table below for all supported codes in Limelight XE (version 2.2 and later).

Supported SGR Codes

Standard Color Table

Extended Color Table (8 Bit)

Extended Color (24 Bit)

Limelight XE also supports a 24 bit (16,777,216 colors) mode often referred to as RGB mode.  It has the format ESC[38;2;<R>;<G>;<B>m for foreground and ESC[48;2;<R>;<G>;<B>m for background.  See examples below

// this message has R=255, G=140 and B=0 (Dark Orange) for foreground and R=255, G=228 and B=225 (Misty Rose) for background
console.log('\x1b[38;2;255;140;0;48;2;255;228;225mExample 24 bit color escape sequence\x1b[0m');