adjust gtk2 button active and contrast, set glowstyle to 1.0
adjust Zen-griza button active
adjust gtk2 button selected
clean widgets settings
fix gtk2 notebook-bg for nigra and nokto variants
fix combobox entry insensitive state for Zen-nigra
fix Zen-nigra insensitive text-shadow

Conflicts:
	Zen-blua/gtk-3.0/gtk-widgets.css
	Zen-griza/gtk-3.0/gtk-widgets.css
	Zen-nigra/gtk-3.0/gtk-widgets.css
	Zen-nokto/gtk-3.0/gtk-widgets.css
	Zen-papero/gtk-3.0/gtk-widgets.css
	Zen-verda/gtk-3.0/gtk-widgets.css
	Zen/gtk-3.0/gtk-widgets.css
set gtk2 radiocheck-bg active to bg[NORMAL]
add @bg_hover color def. and adjust Zen-nigra button and notebook color
modify treeview headers to flat style
fix gtk2/3 scrollbar style
fix color name in gtk-widgets.css
fix Zen-griza/index.theme
adjust gtk3 .menubar>.menuitem:hover
adjust colors values
adjust XfceNotifyWindow::border-color
adjust titlebar bg color
fix CheckButton background
add @text_selected color value, update Zen-nigra and Zen-nokto selected text
adjust selected text color