I have several fine drying out cracks in the plaster of my house,
which is now about 18 months old. Several walls are affected. I shall
short;ly be placing the property on the market. I don't want to go to
all the hassle of painting all the walls, which are currently
magnolia.

My aim is to repair the cracks and dust over them with a fine brush
with magnolia so that the cracks are invisible. In other words, the
kind of repair done to Old Masters.

Possible?

I could do this by colouring some Polyfilla to match the magnolia.
Alternatively, just use Polyfilla as it comes, then brush across the
crack with magnolia afterwards. Maybe then leave it a couple of months
for normal ageing to work and for the newly applied paint to 'weather'
into the surrounding wall.

It just seems a heck of a lot of work (and money) to repaint all the
walls, since the new owners will doubtless have their own preferred
colour scheme anyway.

Another alternative is just to sell the house 'as is' and let them
worry about filling the cracks.

MM