So I have noticed that the

ask [] and wait

gives a slightly off “next button”.

So I messed around with Scratch's CSS and noticed the issue:
If you change:

.question_question-submit-button-icon_upm57 {
width: calc(2rem - 0.5rem);
height: calc(2rem - 0.5rem);
position: relative;
right: -7px;
left: -7px;
}

To

.question_question-submit-button-icon_upm57 {
width: calc(2rem - 0.5rem);
height: calc(2rem - 0.5rem);
position: relative;
right: -7px;
left: -4px;
}


It works fine:

I think this only happens on Firefox. You could submit a PR on GitHub if you want.

Considering this is a code change, and nobody else can really understand this, I have to agree with the above poster, you should probably submit this as a bug fix on GH.

god286 wrote:

I think this only happens on Firefox. You could submit a PR on GitHub if you want.

I shall never be able to unsee this.
Also, it happens on Safari, as well. It's not as off-center as in the image, but it's still slightly off.