Return a 24-bit integer pixel value given separate red, green, and blue values.
Each r, g, b value is an integer between 0 and 255.
You probably want to use TargaBase#get_row_rgb or TargaBase#get_row_rgba instead.
You probably want to use TargaBase#put_row_rgb or TargaBase#put_row_rgba instead.
Given a 24-bit integer colour value, return separate [r, g, b] values.
[Validate]