# Typo in operationtable

The following code:

```
from sage.matrix.operation_table import OperationTable
OTa = OperationTable(SymmetricGroup(3), operation=operator.mul) # optional - sage.plot, sage.groups
OTa.color_table()
```

produces a table where the colors for the elements are wrong: f is purple in the first line but green in the second. It is confusing how can I change this?