You wouldn't "see" anything on screen as a Viewer LUT is placed on top of the colour managed footage. Don't worry about it. Once you set it to Color Managed, you are good to proceed.

Glad it helped!

Thank you so much Jamie.

additional information: the edges of my person has pink blue dots/fringes.

Would you please mind uploading a sample footage somewhere and giving me a link here. I’ll need to reproduce it to see what the problem is.

@@coffeebeanstudio I actually found the issue on that, the background must be added in fusion page not in edit page. once set in fusion page, the keying looks great. thank you for the tutorial!

Always welcome

Hey mate. 1. You can resize the foreground image in the Edit page using the Inspector panel. Select the foreground clip (the guitarist), and adjust the Zoom or Position parameters to resize or reposition it. If you're working in the Fusion page, you can adjust the size using the Transform node after the keying process. Resizing does not affect the green screen keying itself, as long as the keyed-out area remains intact. 2. If you're working in the Fusion page, add a Color Corrector node or a Grading node directly to the background clip. If you're on the Color page, you can grade the background layer separately by selecting it in the timeline. Since the background is placed on its own track or node (separate from the keyed foreground), you can apply color adjustments independently without affecting the foreground. 3. To grade the entire composition (foreground and background together), you can do one of the following things - Add a Timeline Grade in the Color page. This applies a grade to everything on the timeline. Or Use an Adjustment Clip in the Edit page, positioned over your entire composition. Apply your color grade to the adjustment clip, which will affect everything beneath it. Or Alternatively, in the Color page, use a Post-Clip Grade for uniform adjustments across the timeline. 4. You can control the length of each layer individually on the Edit page. Ensure you’ve placed the foreground (keyed clip) and the background on separate tracks. Simply trim, retime, or extend each layer as needed using the Trim or Retime tools. If the tracks are stacked and grouped, unlink them first by right-clicking and selecting Decompose in Place (if applicable) to ensure independent control. 5. To animate the foreground Go to the Edit page, select the foreground clip, and open the Inspector panel. Use the Position controls to set keyframes for the starting and ending positions of the movement. To refine the speed and smoothness, open the Keyframe Editor or Curve Editor (accessible from the timeline toolbar). Here, you can adjust the interpolation of the keyframes, using easing options to create smooth motion. Alternatively, if you’re in the Fusion page, use a Transform node connected to the foreground and keyframe its position directly within Fusion’s timeline.

Which one are you referring to? Timestamp please?

You can do it! You'll get used to it very soon.. Should take more than 2 minutes to do once you are used to it.

Glad it was helpful!

No one tool will get you there , unfortunately. For the places that are missed out, you’ll want to either try tweaking your parameters or combine with the other techniques shown in the video.