[Bug]: workbench startup, zen mode, and some sections aren't transparent

[devCKVargas]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Empty workbench, toggling Zen mode on/off, and parts of the editor aren't applying transparency properly.
Check the attached screenshots bellow.

Expected Behavior

• Disabling Zen mode should bring the transparency back. Or it shouldn't go opaque in general.
• Sticky scroll should have a lower transparency, higher opacity for it to still be distinguishable.

Steps To Reproduce

• Toggle Zen mode

Environment

- OS: Win11 23H2 (22631.3593)
- VSCode: 1.89.1
- Extension: 1.1.34
- Theme: Catppuccin Mocha

Anything else?

Similar to: #14 #132
Ignore No. 3 as I forgot about the Terminal gpu acceleration