JXA Change Tab Background

index.jxa

let terminal = Application("Terminal")
terminal.includeStandardAdditions = true

let defaultBackground = terminal.defaultSettings.backgroundColor
let blueBackground = defaultBackground

terminal.windows[0].selectedTab.currentSettings.backgroundColor = blueBackground

terminal.displayDialog(terminal.windows[0].selectedTab.history.toString())

console.log(
//	terminal.windows[0].frontmost
//	terminal.windows[0].selectedTab.currentSettings.name.toString()
//	terminal.windows.find(window => window.frontmost).selectedTab.contents
)