White border (can't change)

I've been using this app (v1.8.1) for the last two weeks and it was all fine, working as it's shown on the screenshots etc.

Then, as far as I can tell, after I received a Nvidia GPU driver update today (536.99), the context menus suddenly started to show a white border around them as if I've enabled it in the config file myself. Example:

Screenshot 2023-08-09 145142

Info about my system:

Nilesoft Shell version 1.8.1
GeForce Game Ready Driver, Version: 536.99, Release date: 08/08/2023
Windows 11 Enterprise Insider Beta, "23H2", Build 22631.2129, Windows Feature Experience Pack 1000.22669.1000.0
Lenovo Legion 5 2020 (15ARH05H), AMD Vega 7 integrated graphics with RTX2060 dGPU (running in the hybrid graphics mode)

I tried uninstalling the app completely, restarting the OS, then installing it again with the default configs too (using winget). It's the same as far as this white border thing is concerned.

This is the theme section of my shell.nss file (which is unchanged from the default installation I receive):

        theme
        {
            name="modern"
            background
            {
                //opacity=85
                //effect=1
            }
            image.align = 2// 0 = checked, 1 = image, 2 = both
        }

I tried adding this (and many combinations of these values) after the image.align line but no matter what I tried, nothing had any effects on the border (yes, I restarted Explorer after each change):

            border
                {
                enabled = 0
                size = 0
                color = color.accent
                opacity = 0
            }

I'm open to suggestions/things to try & report back.

moudey / Shell

White border (can't change) #313