A question about transparency

[moliqing2023]

I saw in the first image ：Threshold-Miku/Previews/ main.jpg, the selection of subgame is transparent, but I installed in the process, is not transparent, please tell me how to do?
https://github.com/Jack-Myth/Threshold-Miku/blob/Light/Previews/Main.jpg
My installation results:
https://s1.ax1x.com/2020/03/30/GeaMwT.png

[Jack-Myth]

They actually are two different UI. The old library is transparent but the new library isn't. Because the new library has too many elements and animations, it's hard to make it transparent while keeping all the things easy to read.

[moliqing2023]

I used the old version of steam UI file and it is ready to use. Thank you for your reply

[moliqing2023]

They actually are two different UI. The old library is transparent but the new library isn't. Because the new library has too many elements and animations, it's hard to make it transparent while keeping all the things easy to read.

I used the old version of steam UI file and it is ready to use. Thank you for your reply