Questions and answers

WPS-Wizard

Why don't you use WarpIn for installation?

WarpIn lacks features I need for successful installation (as I was told by someone who knows WarpIn better than me).

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Icon Engine

My WPS seems to be slower when using the PNG icons

Yes, that's a tradeoff you have to pay. The PNG icons used by the engine are 24 bit True Color icons (more than 16 million colors) with transparency and translucency. The standard eCS icons in contrast are only 16 color icons without any alpha blending. This means the icon engine has to handle more graphics data and in addition has to do alpha blended blitting to the screen which sadly is not hardware accelerated. But I think the result is worth the effort ;-).

I don't like your icon themes.

Get icons from ​http://www.kde-look.org, ​http://www.kde-look.org or ​deviantART and create your own.

Will you integrate the icon engine into XWP?

No.