Lightening the colour of the overview's blur on top of wallpaper

[iceequal]

Hi. Thanks for a great app. I'm just wondering, when you have clicked on 'Activities' and are looking at the GNOME overview/window picker or GNOME Applications menu, is there any way to make the colour of the blur effect over your wallpaper slightly less dark?

To me this is a problem with GNOME -- where even with relatively bright wallpapers, the bright whites of the thumbnails really look too bright up against the darkened wallpaper in the the overview. A 'frosted' or simply transparent/blurred background, i.e. without the somewhat dated black glass effects is what I'm looking for to match my amazing elegance-colors theme.

To put it another way, you can start thinking you have perfected your GNOME-shell theme with elegance-colors until you click on Activities, and the darkness of the background blur now needs adjusting to match your custom dash, activity bar, and desktop switcher colours as well as icons and GTK theme and everything else. But I haven't seen how to change it.

So, if it's possible, I would think that having an extra option in elegance-colors -- to change the alpha/darkness properties of the wallpaper blur in GNOME overview -- would be a worthy new feature.

Thanks for reading!