Navigation UI elements are incorrectly displayed while using light gruvbox high contrast color scheme

[animusastralis]

Is the bug present when using the default Obsidian theme?

No

Is the bug present when snippets and plugins are disabled?

Yes

Minimal theme version

7.5.4

Describe the bug

Firstly, active primary navigation button is barely visible. Bug can be replicated on both Windows 11 and MacOS:

Secondly, minimize, maximize and close buttons aren't visible at all on Windows 11:

Debug info

SYSTEM INFO:
Obsidian version: v1.5.12
Installer version: v1.5.12
Operating system: Windows 10 Pro 10.0.22631
Login status: not logged in
Insider build toggle: off
Live preview: on
Base theme: light
Community theme: Minimal v7.5.4
Snippets enabled: 0
Restricted mode: off
Plugins installed: 12
Plugins enabled: 1
1: Minimal Theme Settings v7.5.0