-- ftd.color c: red
dark: green
-- ftd.color b: orange
dark: purple
-- ftd.color d: pink
dark: blue
-- boolean a: true
-- ftd.text: Hello
color: $c
color if $a: $b
-- ftd.text: Just color
color: $d
-- ftd.text: Dark Mode
$on-click$: message-host enable-dark-mode
-- ftd.text: Light Mode
$on-click$: message-host enable-light-mode
-- ftd.text: System Mode
$on-click$: message-host enable-system-mode
-- ftd.text: Change a
$on-click$: toggle $a
-- ftd.text: a is true
if: $a
-- ftd.text: a is false
if: not $a