surfkeys.txt

// an example to create a new mapping `ctrl-y`
mapkey('<Ctrl-y>', 'Show me the money', function() {
    Front.showPopup('a well-known phrase uttered by characters in the 1996 film Jerry Maguire (Escape to close).');
});

map('u', 'f');

// an example to remove mapkey `Ctrl-i`
unmap('<Ctrl-i>');

// click `Save` button to make above settings to take effect.
// set theme
settings.theme = `
.sk_theme {
    background: #000;
    color: #fff;
}
.sk_theme tbody {
    color: #000;
}
.sk_theme input {
    color: #317ef3;
}
.sk_theme .url {
    color: #38f;
}
.sk_theme .annotation {
    color: #38f;
}

.sk_theme .focused {
    background: #aaa;
}`;