LibreOffice Start shows black text on black background sidebar

[fossfreedom]

• Materia version: 34bffc1
• GTK3 version: 3.24.25
• Distribution (and version): Ubuntu Budgie 21.04
• Desktop environment (and version): Budgie Desktop 10.5.2
• Related application (and version): LibreOffice (Start)

Actual Issue
Libreoffice start shows black text on black background for Materia

In comparison Materia-dark

Steps to Reproduce
Start libreoffice in a terminal

i.e. libreoffice

[fossfreedom]

EDIT: I did a git bisect and libreoffice broke with this commit abc8df7

Edit2: uncommenting the background-color and color lines here seems to fix most libreoffice issues

materia-theme/src/gtk-3.0/sass/_common.scss

Line 85 in 34bffc1

// background-color: $surface-z0;

This CSS in GTK_Inspector tidies up the main side box and the side box (bottom)

viewport > grid > box > box > frame > box  {
 background-color: transparent;
}

viewport > grid > box > box > frame > box > box  {
 background-color: transparent;
}

There isn't really a styleclass to target here.

[mabod]

This is similar to the issue I opened 25. March:
#560