gnu: Add emacs-adwaita-dark-theme

* gnu/packages/emacs-xyz.scm (emacs-adwaita-dark-theme): New variable.

Change-Id: Id6e6d0d6aa27e7c1cc6ec0fc11c3a5f09231d751
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/emacs-xyz.scm

@@ -2017,6 +2017,27 @@ Apprentice and Sourcerer.")
 theme but now takes more inspiration from the Nano theme.")
     (license license:gpl3+)))
 
+(define-public emacs-adwaita-dark-theme
+  ;; Version 1.1.1 isn't tagged upstream.
+  (package
+    (name "emacs-adwaita-dark-theme")
+    (version "1.1.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://gitlab.com/jessieh/adwaita-dark-theme")
+                    (commit "057c39313341907b35c68d2179226886a0c276fd")))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1g7hyg2hfvn24gaw4lca4g8lw10q2wg9nfrgl7pfdggz202m027c"))))
+    (build-system emacs-build-system)
+    (home-page "https://gitlab.com/jessieh/adwaita-dark-theme")
+    (synopsis "Adwaita-inspired dark color scheme for Emacs")
+    (description
+     "This package provides an Adwaita-inspired dark color scheme for Emacs.")
+    (license license:gpl2+)))
+
 (define-public emacs-treepy
   (package
     (name "emacs-treepy")