How to invert colors with Applescript? - applescript

Question

I was doing some research on how to invert colors with Applescript. For the most part, I just found stuff like:
tell application "System Events"
keystroke "8" using {command down, option down, control down}
end tell
But on Yosemite (And I think versions before this), this won't work. You have to go into system preferences and click around in there. So, is there a way to make an applescript that would invert colors?(Preferably without having to "Click" anything because that requires accessibility rights for the script)

Answer 1

You can achieve this by using the 'do shell script' command in Applescript, using this:
do shell script "sudo defaults write /Library/Preferences/.GlobalPreferences AppleInterfaceTheme Dark"
That should turn on "dark mode" in OS X Yosemite. Cheers!

Answer 2

In Yosemite JXA Javascript (should be readily adaptable to AS if you prefer)
toggling dark theme and desktop color together:
function run() {
var dctSettings = {
darkMode: {
day: true,
night: false
},
background: {
day: "/Library/Desktop Pictures/Solid Colors/Solid Gray Pro Ultra Dark.png",
night: "/Library/Desktop Pictures/Solid Colors/Solid Gray Light.png"
}
},
strMode;
app = Application("System Events");
if (app.currentDesktop.picture() === dctSettings.background.day) {
app.currentDesktop.picture = dctSettings.background.night;
app.appearancePreferences.darkMode = dctSettings.darkMode.night;
strMode = "Night";
} else {
app.currentDesktop.picture = dctSettings.background.day;
app.appearancePreferences.darkMode = dctSettings.darkMode.day;
strMode = "Day";
}
return strMode;
}

Answer 3

tell application "System Events"
key code 28 using {command down, option down, control down}
end tell
It's 28 and not 8, Key code 28 is for the "8" key on the main part of the keyboard.