Edges from below layer "shine through"

[Rob_87]

What you see in the attached picture is a white box above a grey box, and the white box is snapped to the lower right corner of the grey box.

So, what I would expect is that no edges from the below grey box kinda shine through, since the white box is perfectly superimposed over the grey box. However, instead, there they are - the edges of the grey box below somehow are visible.

How can I avoid this? What's going wrong here??

[KarinC]

Could it be that the grey box has a stroke applied but the white box doesn't have a stroke.

[h_d]

Which app? If Designer, is this in Pixel Persona or Designer Persona? 

Might be you need to enable Snapping and turn on Force Pixel Alignment (left button below):

 

 

That's your best chance of 'perfect' alignment.

[Old Bruce]

6 minutes ago, h_d said:

That's your best chance of 'perfect' alignment.

Please remember to Turn Off Move by Whole Pixels. The middle button. And turn off any sort of Mid-point snapping.

[thomaso]

It is a known issue caused by the Affinity rendering method. Apart from pixel alignment you can reduce its appearance by deactivating antialiasing.

[Rob_87]

@thomaso thank you, this helped!!