How to change Magenta to whilte for a full clip

[peterkellner1]

Is it possible to change all the magenta color squiggles (like in the attached picture) to white, effectively making it invisible? I don't want to affect anything else on the page, just the two magenta squiggles. One on line 6 and the other line 17.  Those magenta squiggles will be moving all over the page as the video is running.

I also did try "color/replace" but that did not seem to do what I expected.

Thanks

[Richard M Knight]

You could try using ultrakey.

[peterkellner1]

ultrakey helps some (didn't know about that, thanks), but still leaves too much of the line.  Here is with a white background underneath.

[Peru Bob]

Try applying a second ultrakey