You will need to install a user script manager extension to install this script.
Got tired of hunting around galleries for the .gif files, so I made this.
Simple jQuery Tampermonkey userscript that highlights .gif files in a gallery with a glow around the thumbnail.
Feel free to adopt this code for your own use.
Added inline settings on the gallery page for setting custom color/size easier.
Once you're done choosing your color/size, you can edit the script and uncomment out
line 32 to hide the setting link if you don't want to see it anymore.
If you were happy with v0.1, feel free to ignore v0.2, functionally, they do the same thing. Cheers
You can adjust the colors/size of the glow using the WG_GLOW_SIZE and WG_GLOW_COLOR variables near the top.
WG_GLOW_SIZE accepts any number
WG_GLOW_COLOR accepts colors in either color name format ("aqua", "orange", etc.) or hex format (#00FFFF, etc).