Supports 100% scaling settings only.
You'll also need 'StartIsBack' (check the 'SIB Settings' screenshots included in the zip, for theme specific settings in StartIsBack), to apply the start menu
& taskbar style as well as 'OldNewExplorer' for windows explorer to look exactly like it is in the screenshot.
Extract the contents of the 'Theme' folder & copy them to:
From Personalization, select & apply the theme.
Laser Red, Plasma Blue & Antitoxin Logon/Lockscreens in 1920x1080 & 2560x1440 resolutions.
D@rkside Of Aquarius™
you can use this
on 1909 for Plasma Blue, it's updated recently & a bit different i cwertain places from the original theme, but if you would prefer the original one, then all 1903 themes are compatible with 1909 also, so you can go ahead & give the 1903 version a try.