If you have the code to create the histogram you may have to copy all styles by hand; if you only have the histo you can plot it, save the canvas as a .C file and read the code. You can also check UseCurrentStyle and see if it does what you want.
If you have the code to create the histogram you may have to copy all styles by hand; if you only have the histo you can plot it, save the canvas as a .C file and read the code. You can also check UseCurrentStyle and see if it does what you want.