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For sound, all of the files are included...

POP_PC.DAT (PC Speaker)
POPTDY.DAT (Tandy 3 Voice)
POP_ROL.DAT (Roland MT32)

However, for graphics...

CGA___.DAT files are included
EGA___.DAT files are included
VGA___.DAT files are there...

...but the data files for Tandy 16 Color graphics mode are missing.

Does anyone have the original diskettes they can upload them from?
Nevermind. The parameters to get Tandy 16 color is the same used to get sound... so...

Populous.exe Tandy Tandy

(first one for TGA, 2nd for 3 Voice Speaker)