But it wouldn't be impossible without Hyperion Launcher (beta). The developer of this launcher added support for themed icons from Android 13 and made it available to device with lower android version.
Also in recent Lawnchair 12.1(dev) updates (#1414), the developers have added the possibility of themed icons for icon packs that support it. And our icons instantly change color on Android 8+ and above.
Hyperion Launcher
Here's a little guide to proper usage:
You must download Hyperion Launcher BetaDownload Pix Material You Light/Dark icon pack or OneYou Themed
Setting the color scheme
Setting Hyperion > Colors > Theme > Theme base color > Wallpaper colorActivating Themed Icons
Setting Hyperion > Iconography > Themed Icons.Having configured everything correctly, the icons will change color from the wallpaper and from the system theme (Light / Dark) automatically with a delay of a couple of seconds on devices starting with android version 8+.
Lawnchair Launcher 12.1
Download Pix Material You Light/Dark icon pack or OneYou Themed
Settings Lawnchair > General > Icon Style > Change icon pack > Themed Icons Home Screen & App Drawer.
Smart Launcher
The instruction is written primarily for our icons, but will also work with others.
If you want to copy the instructions to your site, then be sure to link to this source.