Dear Aleaxander,
That you for the suggestion. We shall update it in our documentation.
Best Regards!

Dear Gmarvz,
It seems you are using some other theme. Please check.
Best Regards!

Dear dphelps,
Such issues are common for the iOS devices as Safari browser still does not support background-attachment: fixed; property. But it should not appear
on the Android devices.
But you can add the following CSS code in Additional CSS for removing the blurry image from all mobile devices
Appearance > Customize > Additional CSS

@media(max-width:767px){
    .at-parallax {
       background-attachment: scroll !important;
   }
}

(Note: It will change in all mobile devices)

Best Regards!

Dear Kathiemt,
There no other way to resize featured image. You have to manually resize the image. Recommended size is 1920×1280. But for Thumbnail you can adjust the height. Please add the given CSS code in Additional CSS.
Appearance > Customize > Additional CSS

.no-sidebar .masonry-item {
    height: 325px;
}

Best Regards!

Dear Rodger,
There isn’t any problem with our theme. The AT About Section Widget is working fine. Could you please try again?
Best Regards!

Dear Seçkil,
We would like to know if you are using any language translation plugin.
Best Regards!

Dear Seckil,
Please make clear what you want change you want to make on the text. By default, it can’t be changed.

Best Regards!