Hulk fix

[Akshay-2007-1]

Description

This PR fixes the issue raised at #2970. The CSE Machine that wasn't included earlier in the green screen is included right now! The colors of the dead/faded text and stroke colors and the live versions have been switched due to the contrast of the background! Note that to enable Hulk mode, the hotkey is Alt + Shift + H while the cursor on the playground isn't enabled for typing.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Code quality improvements

How to test

Run the following code :

function scale_stream(c, stream) {
    return stream_map(x => c * x, stream);
}

const C = pair(1, () => scale_stream(2, C));

stream_ref(C, 2);

and at any valid step in between, you can see that after enabling Hulk mode through the above hotkey, the CSE Machine is a part of the green screen!

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Checklist

• I have tested this code
• I have updated the documentation

[RichDom2185]

Is there a reason to switch the foreground color? The reason it exists is not for the visuals. It's because in lecture you just chroma key it the exact green out. So if you switch it, then the dark CSE machine foreground will be on top of the dark lecture Zoom background, making it invisible?

[Akshay-2007-1]

Is there a reason to switch the foreground color? The reason it exists is not for the visuals. It's because in lecture you just chroma key it the exact green out. So if you switch it, then the dark CSE machine foreground will be on top of the dark lecture Zoom background, making it invisible?

Actually, I didn't know about this but what we realized is that in the Hulk mode, the faded dead frames from the recent Liveness algo was being highlighted MORE than the actual alive frames which is OPPOSITE to what we want i.e., live ones should be highlighted more. So, we asked Martin prof and he said this :

So how do we go about it?

[martin-henz]

Oh, Richard is right. We need to view this in an environment where the green background is replaced by a dark background. I missed that in my discussion with the team.