assertEquals("Checking number of columns", 7, table.getColumnCount());
for (int i = 0; i <= 3; i++)
table.column(i).assertStyle("background: Tan");
table.column(1).assertStyle("color: gray");
table.column(2).assertStyle("color: green");
table.column(3).assertStyle("color: blue");
for (int i = 4; i <= 6; i++)
table.column(i).assertStyle("color: black");
table.column(4).assertStyle("background: LightSteelBlue");
table.column(5).assertStyle("background: LightSteelBlue");