1. A non-transitory computer-readable storage medium storing a plurality of instructions for controlling a processor, the plurality of instructions comprising: instructions that cause the processor to determine an execution path traced by an application for processing an input, the execution path comprising a plurality of elements of the application; instructions that cause the processor to determine delta information for the application, the delta information related to one or more customizations made to the application; instructions that cause the processor to determine, based upon the delta information, a first element, from the plurality of elements, that has been customized, and a second element that is a descendant of the first element, wherein the second element is a customization made to the first element; and instructions that cause the processor to display the execution path comprising the plurality of elements, wherein a first identifier is displayed with the first element to indicate the first element as being customized, and wherein a second identifier is displayed with the second element to indicate the second element as being the customization of the first element.