Add hallo-theme.el from color theme video

Author: daviwil

hallo-theme.el

@@ -0,0 +1,29 @@
+(require 'autothemer)
+
+(autothemer-deftheme
+ hallo "A theme to set the mood for Halloween"
+
+ ((((class color) (min-colors #xFFFFFF))) ;; We're only concerned with graphical Emacs
+
+  ;; Define our color palette
+  (hallo-black      "#000000")
+  (hallo-white      "#ffffff")
+  (hallo-orange     "orange1")
+  (hallo-dk-orange  "#eb6123")
+  (hallo-purple     "MediumPurple2")
+  (hallo-dk-purple  "MediumPurple4")
+  (hallo-green      "LightGreen"))
+
+ ;; Customize faces
+ ((default                   (:foreground hallo-white :background hallo-black))
+  (cursor                    (:background hallo-dk-orange))
+  (region                    (:background hallo-dk-purple))
+  (mode-line                 (:background hallo-dk-purple))
+  (font-lock-keyword-face    (:foreground hallo-purple))
+  (font-lock-constant-face   (:foreground hallo-green))
+  (font-lock-string-face     (:foreground hallo-orange))
+  (font-lock-builtin-face    (:foreground hallo-green))
+
+  (org-level-1               (:foreground hallo-orange))))
+
+(provide-theme 'hallo)