Rtl_mlistbox supports the expected option database entries.

There are additional option database entries not present amongst the commandline properties.

    *Rtl_mlistbox.useColumnColors: 1
    *Rtl_mlistbox.color1: lightblue
    *Rtl_mlistbox.color3: lightgreen
          

In Example 6.4, “Xrdb, Coloured Listbox Columns”, 'lightblue' is used as the colour for the second column in each Rtl_mlistbox, and 'lightgreen' for the fourth.

The colouring of columns is experimental. It may change in future versions.