gtk-3: change basic color scheme (dark -> bright, blue -> green)
gtk-3: set selected_fg_color for buttons with mouse hoverred.
gtk-3: remove the crazy margin that prevents from grabbing the scroll bar when the window is maximized and the mouse cursor is at the right edge.
gtk-3: a bit thicker scrollbar for grabbability
gtk-3: scrollbar is more britened when active.
gtk-3: convert asset imanges by
  for file in `ls orig`; do convert orig/$file -modulate 100,100,38 $file ; done
gtk-2: change basic color scheme.
rename changes -> change_from_Albatross
Remove window manager theme because I'm not interested in it.
rewrite README
modify index.theme.
modify README.