The sound of raindrops was so soothing and inspiring! PLEASE~
I fully support! And for now I have found a temporary solution. Download the file below. After downloading, you'll need to unzip the file and then insert the file into the Zenwriter program as follows:
1. Go to C:\Users\YOURUSERNAME\AppData\Local\Beenokle\ZenWriter
2. Open Typing Sounds folder
4. Paste the Water Drops folder inside. Rename however you like.
And ready. Run ZenWriter and enjoy new typing sound.
Note: To add additional sound to ZenWriter you need to have administrator privileges.