Re: [manifest] Manifest format should support some way of including a splash screen (#9)

Ok, there are two solutions here I can think of... 

1. we support patch images, as per Android: from playing around, it appears that patch images are just PNGs with a 1px transparent border around the image. In that border, black pixel lines indicate what the stretchable areas are (you can have patterns like: __  _ __ ____ __). Android uses a `.9.png` file extension as the way to tell the OS that this is a 9-patch. 

So, in the manifest, we would also provide a member to say that it's a nine-patch image: 

```JSON 
{
   splash: [{"src": "foo.png", "BikeShedMyName": "patch"}]
}
```

When patch markers are missing, we just use, say, 30 by 30px (or some sensible default).

BikeShedMyName could be "align" or "display" or something. 

2. we support CSS border-image syntax. This seems overly complicated tho, because values relate to the rest of a stylesheet, so it's probably not even possible to support 2.  

So, my vote is just do 1: it's simple and straight forward :)

On March 9, 2015 at 7:05:11 AM, Anssi Kostiainen (notifications@github.com) wrote:
> @mounirlamouri For the background image, we're using the 9-patch image method. Android  
> uses something similar for stretchable bitmaps, see http://developer.android.com/guide/topics/graphics/2d-graphics.html#nine-patch  
>  
> ---
> Reply to this email directly or view it on GitHub:
> https://github.com/w3c/manifest/issues/9#issuecomment-77834657



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