Specific coloured blocks always appear white when using Patrix with this mod.
They include:

• Wool
• Concrete
• Terracotta
• Concrete Powder

For some reason, other coloured blocks don't have this issue.
This includes:

• Glass
• Glass Panes
• Shulker Boxes
• Beds
• Candle

Continuity Without Patrix:

Continuity With Patrix

Let me know if anyone else can recreate this issue and if not, I will experiment with some other mods I have installed.

I have Sodium, Iris, Indium, Continuum, Distant Horizons, Starlight, and Lithium. These are all of the graphical and performance mods I have installed.

Install Colormatic. Continuity does not provide support for Optifine's color features.