The controls on the Textures Manager are:
Mode radio buttons - modifies the appearance of psychedelic textures
Standard - standard psychedelic patterns
Reflective - polished metallic psychedelic finish
Scale - controls the size of the psychedelic pattern.
Blend with Theme Color (checkbox) - specifies whether to blend a psychedelic texture with the underlying color of the object.
Texture Map (checkbox) - specifies whether to superimpose a psychedelic texture onto the object. When checked, the following are applicable.
Texture dropdown - specifies a psychedelic texture to be superimposed on the current object.
Transform Texture button - contorts the specified texture, mostly for entertainment. Give it a try.