table.debug {
    table-layout: fixed;
    border: 1px solid black;
    border-collapse: collapse;
}
table.debug td {
    border: 1px solid black;
}
td.color_1 {
    color: transparent;
    background-color: #ffff00;
}
td.color_2 {
    color: transparent;
    background-color: #00aff0;
}
td.color_3 {
    color: transparent;
    background-color: #5cb85c;
}
td.color_4 {
    color: transparent;
    background-color: #d43f3a;
}
td.color_5 {
    color: transparent;
    background-color: #eea236;
}

td.color_6 {
    color: transparent;
    background-color: #983c78;
}

td.color_0 {
    color: transparent;
    background-color: #000;
}