Colorize by Time - This option is the default. It color codes the functions with the top five self time values so they are quickly identifiable in the call graph. These colors match the colors in the 'Top Five Functions' bar charts in the summary report and they range from bright red to bright yellow, red being the highest value, yellow the lowest, and the shades of orange representing functions two, three and four. These colors are easily identifiable in the mini-map so you can scroll quickly to these critical functions.

Colorize by Coverage - This option colors the functions based on code coverage. Green indicates that all of the instructions were executed, while yellow represents partial coverage, and red indicates no coverage. Note that no red functions appear unless the 'Show Uncalled Functions' option is activated.