For Snow theme you will have to add this CSS to the end of your qa-style.css file:
Now, if you actually meant Snow Flat then you will have to add that CSS to the file css/snow-core.css, right before this line:
/*# sourceMappingURL=snow-core.css.map */
Of course, change the percentage to whatever you want.
By the way, alpha 2 does not exist :)
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April 20, 2021: Q2A 1.8.6 released!