Transparent hollow or cut out circle?

Is it possible to cut out a hollow circle using only CSS? This we can all do: But can we do this? The circle ...

Resizing semi transparent Images with C# and GDI+ causing faint grey line where transpareny meets opaque?

I have looked at other questions such as Ghost-borders ('ringing') when resizing in GDI+ to try and fix my problem, ...

Clear Transparent Background for QWidget?

I have a widget as on overlay for another widget. The transparency works fine, as long as I don't clear the backgrou...

Shading artifact beneath an ImageView with a png that have fully transparent background?

I'm working on a Gingerbread (2.3.3) device. I have an ImageView which contains an arrow figure and have a fully tra...

ImageMagick: How to make both black and white transparent??

Converting black and dark shades to transparent works fine with ImageMagick. I even managed to perform a crop and re...

Apply gradient mask on image that already has transparency with ImageMagick??

I've got a PNG image with transparency: original.png Now I want to use ImageMagick to apply a diagonal gradient t...