minColour.setBorder(BorderFactory.createLineBorder(Color.black));
minColour.setPreferredSize(new Dimension(40, 20));
minColour.setToolTipText("Minimum Colour");
minColour.setBorder(BorderFactory.createLineBorder(Color.black));
minColour.setPreferredSize(new Dimension(40, 20));
minColour.setToolTipText("Minimum Colour");