Build a Grid: Android Basics with Compose

[kosail]

URL of codelab
Practice: Build a grid

In which task and step of the codelab can this issue be found?
In "Before you begin" section.

Describe the problem
The resource ic_grain.xml. does not exist.

Steps to reproduce?

1. Go to the URL of the code lab, and scroll down to resources
2. Click on "ic_grain.xml" link
3. See error from Github 404 Not Found

Versions
Android Studio version: N/A
API version of the emulator: N/A

Additional information
Include screenshots if they would be useful in clarifying the problem.