Please make a more visible blue mark for the visually impaired to make it easier to see incomplete achievements for the character or account, if possible.

Same request for a more visible Alliance or Horde label.

Thank you in advance.

Hey, I'm going to need more input on that one. Can you maybe add some screenshots with more explanation on what you mean? I see 2 topics:

1. More visible blue mark for the visually impaired to make it easier to see incomplete achievements for the character or account. For this one I'm not sure what you mean.
2. More visible Alliance or Horde label. For this one I assume it's these?
   

For example. The first one is clearly visible because it is done.

The second and third are unfinished, but I can hardly see the blue stripe. Thanks for the red dot, but is it possible to make the blue stripe brighter or instead of the red dot, a thick red frame around the raptor?

The third unfinished horde emblem is also not very visible, is it possible to make it brighter or make the shield sign with the number entirely bright red, for example?

The red dot I added is the warband icon flame. The reason for adding it was indeed to make the account wide achievements stand out. There is an option to hide the blue color and just rely on the warband icon. Would a blue stripe with the same clarity as a completed achievement be a good solution with the same dark brown background?

Making the horde icon more bright should be easily possible.

I did some rework already for the faction icon. This image is more or less how it was before but now with an adjustable alpha level:

This is how high you can go:

It now off course makes the completion date less readable but that's an issue for another time :)

There is a beta build available.

An example of what you want is already partially there. In the options if you set Earned by to Characters / Account, achievements earned by both your character and the account are fully colored. Achievements that are earned by your account but not your character have the header colored only. If we would color the header always for better visibility, a conflict would exist between the 2 but is something I can live with if that option is off by default and you don't use this filter.

The faction sign is now perfectly visible, thank you!

Would a blue stripe with the same clarity as a completed achievement be a good solution with the same dark brown background?

Yes, I think it will be the best solution as an option. Green and red too.