There's a closed pull request on the void-packages repository

New package: adw-gtk3-1.7
https://github.com/void-linux/void-packages/pull/36812

Description:
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#### Testing the changes
- I tested the changes in this PR: **YES**

#### New package
- This new package conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements): **NO**

From [Manual.md](https://github.com/void-linux/void-packages/blob/master/Manual.md):
>new themes are highly unlikely to be accepted

but 

>If you believe you have an exception, start a PR and make an argument for why that particular piece of software, while not meeting any of the following requirements, is a good candidate for the Void packages system.

[adw-gtk3](https://github.com/lassekongo83/adw-gtk3) is the theme from libadwaita ported to GTK3. I've been using it for a while and I really like it.
Now that more and more apps switch to libadwaita, this theme can be used to bring consistency to the app appearance. So perhaps this could make an exception to our inclusion policy.

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