wxGrid separator lines not visible when using light theme in Linux

Description

Wherever tables are used in KiCad, the grid lines are not visible when using a light theme. This makes is especially hard in Symbols Field Editor. I've tested on Ubuntu 22.04 and 23.10.

Also not sure if the empty cells in Alternate Assignment column looks right.

KiCad Version

Application: KiCad Schematic Editor x86_64 on x86_64

Version: 8.0.1-8.0.1-0~ubuntu23.10.1, release build

Libraries:
	wxWidgets 3.2.2
	FreeType 2.13.1
	HarfBuzz 8.0.1
	FontConfig 2.14.2

Platform: Ubuntu 23.10, 64 bit, Little endian, wxGTK, X11, ubuntu, wayland

	wxWidgets: 3.2.2 (wchar_t,wx containers) GTK+ 3.24
	Boost: 1.74.0
	OCC: 7.6.3
	Curl: 8.2.1
	ngspice: 42
	Compiler: GCC 13.2.0 with C++ ABI 1018

Build settings: