JS Morisset

A simple plugin to decolorize the colorful admin menu icons added by some plugins like NextGEN Gallery, Meow Apps / Perfect Images, Wordfence Security, and many more.
No setup required – simply activate the plugin to decolorize the admin menu icons.

JSM Decolorize Menu Icons

A simple plugin to decolorize the colorful admin menu icons added by some plugins.

Chanon Srithongsook

A simple plugin to Gray out website with specific percentage and show black ribbon on the top on scheduled date to show mourning for your loved one.
Features:
<ul>
<li>Turn whole website into gray with adjustable percentage</li>
<li>Floating black ribbon on top left or top right (Ribbon fade out if user click on the ribbon to avoid UX problem)</li>
<li>Adjust percentage with scroll bar and sample image that reflect the percentage</li>
<li>Schedule date to show mourning, once or anually.</li>
<li>Closable mourning message on the top</li>
</ul>

WP Mourning

I've used it on my website

A simple plugin to Gray out website showing the black ribbon to show mourning for your loved one.

JSM Decolorize Menu Icons vs WP Mourning