Layout overlay color

I used your online skin builder to create custom skin. When I re-size layout it would create pretty wierd pinkish colored overlay.

I have a hard time locating css rule in dhtmlx_custom.css. Could you please help me to get rid of it or maybe change it’s color.

Could you provide us a demo, please?
If you use PRO edition - do not attach there dhtmlx.js file … leted_demo