Singhala keymap provides a means for typing Dual-script Singhala. It is preferably added to the top of the "lk" layout file at X11/xkb/symbols/pc/lk. It is use for romanized Singhala, which fully covers the three languages Singhala, Sanskrit, and Pali. The text typed using it can be displayed in the Singhala script when displayed using orthographic smart-fonts. Where there is no Singhala font available, the text appears as readable Latin text.