Despite all the speculation about the farmer's financial status and architctural prowess, I feel the answer to the question comes down to a simple matter of geography. Does he live in an area where red clays are predominant or yellow clays?
I doubt that bricks and other building materials were transported very far in Europe the 1800's and it would therefore be logical that most houses in one area would have been built from whatever was available locally, whether it be red bricks, yellow bricks or zebra-striped bricks!
Whilst there was a fledgling railway network in Hungary in the 1800's, there were no heavy transport vehilces, so I'd assume that carriage of building materials would only have been done for such noble structures such as castles, chateax, cathedrals and administrative buildings.
The structural properties of bricks cannot be determined by colour. It depends upon the chemical composition of the clay used (eg. silica or iron content), so it would be impossible for a farmer to choose the quality of his building materials on that basis. That said, I suppose there may have been a common belief that one colour was "better" than another. Anyone familiar with 19th century geomechanics????