Theme not working in LXDE

[shetty-777]

I am using RaspberryPiOS (Based on Debian 12 bookworm), which means, LXDE is my Desktop Environemnt.First, I downloaded the theme (Sweet Ambar Blue) from pling.com. I tried to install pling-store but I guess it is not active anymore and the app wouldn't launch. Anyways, I put the theme folder in ~/.themes and ~/.local/share/themes (I had to create both of them). But it would not show up in LXAppearance (Customize Look and Feel). And then I downloaded the Sweet-master from GitHub and it did show up! But it looks like Windows Vista or something, with light color(colour) and 3D buttons. PLEASE HELP! I love this theme, especially Ambar Blue. Thanks in advance