9. A non-transitory computer-readable storage medium comprising instructions for indicating a change to a dependent file, wherein the instructions, when executed, are for controlling a computer system to be configured for: receiving a first change to a program file; performing, via a computing device, a second change to code or program data in a first dependent file on the program file on the program file; wherein the second change is related to the first change; and displaying in a document editor a first identifier for the first dependent file in a first text style, if the first dependent file is changed based on the first change to the program file; displaying in the document editor a second identifier, in a second text style, for a second dependent file, wherein: code of the program file calls code or program data of the first dependent file and the second dependent file, the first text style indicates the first dependent file has been changed based on the first change to the program file, and the first text style and the second text style are different styles.
9. A non-transitory computer-readable storage medium comprising instructions for indicating a change to a dependent file, wherein the instructions, when executed, are for controlling a computer system to be configured for: receiving a first change to a program file; performing, via a computing device, a second change to code or program data in a first dependent file on the program file on the program file; wherein the second change is related to the first change; and displaying in a document editor a first identifier for the first dependent file in a first text style, if the first dependent file is changed based on the first change to the program file; displaying in the document editor a second identifier, in a second text style, for a second dependent file, wherein: code of the program file calls code or program data of the first dependent file and the second dependent file, the first text style indicates the first dependent file has been changed based on the first change to the program file, and the first text style and the second text style are different styles. 16. The non-transitory computer-readable storage medium of claim 9 , wherein the a computer system is further configured for displaying the change indicator adjacent to the first identifier of the first dependent file, where the change indicator indicates the second change to the first dependent file has been performed.