The original image and the Protanopia image are exactly the same to me.
The Deuteranopi looks very slightly different -- if I really stare at it. The other do indeed look different.
I definitely have trouble with many shades of some colors, especially if the colors are really small on the screen.
So many Protanopia colorblind filters in games and apps mess up the colors way too much for me, and look worse and less visible than the non-colorblind normal color settings. Definitely interesting to hear about other colorblind users' accessibility issues.
There are so many degrees of colorblindness that accessibility is difficult to cover for all of us. I hope Mozilla and other developers are accounting for common colorblindness and testing with real colorblind people.
I also can't use the red-green colormodes in slack, iOS, mac, etc. because it makes the colors too... weird.
I often wonder if it's because the colors that I see, grew up with and label as "red" and "green" are actually different to what other people see as "red" and "green". But since we all just use these words to describe color, I would never know if the world that I see is similar to what everyone else sees.
Maybe the colorfilters do make things look 'real' and the red that comes out after the filter is the real red like how other people see it. But I'm already too used to "my red" that the "real red" just looks fake and odd.
I think these computer compensation controls should be sliders.
However, show me a bright purple figure on a black background and I'll probably tell you it's blank.
What's even more fascinating is that, while these two images are very different to me, what you are actually seeing might be totally different to what I am seeing in the Protanopia image and we won't know.