Here we go again with the Pink Panther tormenting the Little White Man. The latter is in his yard, planting yellow posies. The nervy Panther is right behind him, immediately replacing the flowers with pink ones, because he would prefer that.....even though it's none of his business! The poor gardener doesn't see the PP, only that his flowers seem to have magically changed colors seconds after he plants them! He scratches his dead in disbelief.
That's the gag of this animated short - the exchanging of yellow flowers to pink, back to yellow, back to pink, etc., and how these transformations take place. The whole time the White Man can't figure out how his flowers keep changing to pink, until the very end. Most of the time, the poor little guy thinks there is something wrong with his eyes, since he keeps seeing pink.
As another reviewer pointed out, this is similar in theme to the first-ever Pink Panther cartoon in which he paints pink over everything the other guys does. No matter, even if this isn't original it was fun to watch and amazing how many variations come up with a simple theme.