This is a simple Python script to easily rename and/or copy Android drawables in every drawable folder (xdpi, ldpi, ect). I don't know why AndroidStudio won't let you rename a drawable in every folder at once, so this is atleast somewhat more comfortable than doing it manually.

You need Python 3 installed and the script uses colorama for fancier console output, so you'll have to install that using pip install colorama. Otherwise no setup should be required.

It really has three usecases: rename, copy and copy-rename.
To start off, here's the help description:

usage: drawabletool.py [-h] [--from-dir dir] [--to-dir dir] [--drawable]
                       [--mipmap] [--no-copy]
                       file-name [file-name ...]

Collection of tools to manipulate Android drawable files. Available tools:
copy, rename and copy-rename. All actions will try to run through every
drawable directory. Directory paths must lead to the res folder and filenames
must include their extension. To rename a file simly use
oldName.png>newName.png

positional arguments:
  file-name       A drawable file name. Use oldName>newName to rename it
                  aswell.

optional arguments:
  -h, --help      show this help message and exit
  --from-dir dir  Directory to the source android project
  --to-dir dir    Directory to the target android project
  --drawable      Use drawable directories
  --mipmap        Use mipmap directories
  --no-copy       Don't copy, only rename

To copy a drawable from and into every drawable-subfolder, use
python drawabletool.py --to-dir path/to/projectA/res --from-dir path/to/projectB/res --drawable filename.png

--drawable says tells the script to look through the drawable folders, additionally --mipmap can be used to perform the same action with mipmap folders.

To rename a drawable inside every subfolder, use
python drawabletool.py --from-dir path/to/project/res --no-copy --drawable oldname.png>newname.png

Important to note here is --no-copy which tells the script to only rename without copying.

To both copy and rename at the same time, just combine the two resulting in something like this
python drawabletool.py --to-dir path/to/projectA/res --from-dir path/to/projectB/res --drawable oldname.png>newname.png

You can also perform any action on multiple files at once by just adding them to the command, for example python drawabletool.py --to-dir path/to/projectA/res --from-dir path/to/projectB/res --drawable filename.png oldname.png>newname.png ...

Once you've specified --to-dir and --from-dir the script stores them in a config file so you won't have to provide them with every command, only when changing directories.