how to change the kivy logo with buildozer spec

[MaxAndMax alex]

how to change the kivy logo with buildozer spec???

[ZenCODE]

Which logo? You can use

    presplash.filename = working/splash/presplash.jpg

from the splash screen (in your buildozer.spec file), or

    icon.filename = %(source.dir)sicon.png

for the icon.

[MaxAndMax alex]

Hello ZenCode,im a beginner and i not speak well english i wanna upload a apk on google store,i mean the main  icon of the app. THE LOGO MAIN BLACK  AND WHITE I WANNA CHANGE WITH MY IMAGE.  i know some information the icon must be 512x512 and i have try modify  in buildozer spec but only always error,i mean icon.filename i use python 2.7 and xubuntu 17.06 in the virtual machine

i modify this always

# (str) Icon of the application

#icon.filename = %(source.dir)s/data/icon.png

i have a image hello.png (512x512 pixel) i have try do :

#icon.filename = %(source.dir)s/data/icon.png/hello.png

#icon.filename =hello.png

and some bad method,,,,,THANKS FOR YOUR TIME AND PATIENCE I WISH TO BE CLEAR

[ZenCODE]

"THE LOGO MAIN BLACK AND WHITE" does not tell me anything new. All the logos's are black and white. If you mean the first image you see when you start the app, that is the splash screen. So use the presplash.filename as above.

One thing. For the icons, leave out the first slash. So its 

    icon.filename = %(source.dir)sdata/icon.png

No hash to start the line.

[Barney Gumble Channel]

thanks Zen but its my first experience with kivy......

can I create a folder in the kivy virtual machine and insert the main.py file, the image for the presplash.filename and 
the file buildozer spec???you can do for me an example like drawing??? I'm really confused Thanks again