Add solarized theme extension files

spacemacs/extensions/solarized-theme/README.md

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+# Solarized for Emacs
+
+Solarized for Emacs is an Emacs port of the [Solarized theme for vim](http://ethanschoonover.com/solarized),
+developed by Ethan Schoonover.
+
+Solarized for Emacs is tested only under Emacs 24, but should be
+working under Emacs 23 as well. The theme is implemented in terms of
+customizations and `deftheme` and does not require the
+`color-theme-package`.
+
+# Installation
+
+
+Solarized for Emacs is available for installation via the
+[MELPA](http://melpa.milkbox.net) and
+[Marmalade](http://marmalade-repo.org/) `package.el`
+repositories. Assuming you've set one of the them up (I recommend
+MELPA) you can install solarized like this:
+
+`M-x package-install solarized-theme`
+
+Afterwards - business as usual, just load one of the theme variants with `M-x
+load-theme`.
+
+(If you want to install manually that procedure is briefly documentet in the
+FAQ at the end of this document.)
+
+# Customisations
+
+## Theme specific settings
+If you don't like low-contrast modeline or fringe, you can `customize` them
+either by doing `M-x customize-group solarized` or setting the values using
+elisp code:
+
+
+```lisp
+;; make the fringe stand out from the background
+(setq solarized-distinct-fringe-background t)
+
+;; make the modeline high contrast
+(setq solarized-high-contrast-mode-line t)
+
+;; Use less bolding
+(setq solarized-use-less-bold t)
+
+;; Use more italics
+(setq solarized-use-more-italic t)
+
+;; Use less colors for indicators such as git:gutter, flycheck and similar.
+(setq solarized-emphasize-indicators nil)
+
+```
+Note that these need to be set **before** `load-theme` is invoked for Solarized.
+
+## Underline position setting for X
+
+If you are using emacs under X you might like the following setting which puts
+the underline below the
+[font bottomline instead of the baseline](https://publib.boulder.ibm.com/infocenter/pseries/v5r3/topic/com.ibm.aix.graPHIGS/doc/phigstrf/figures/afma5rbd.jpg).
+
+Ihmo it enhances the general readability and also it fits well with the default
+`solarized-high-contrast-mode-line` setting which uses an slightly emphazised
+underline for the modeline to create one horisontal window border in the same
+manner as the vertical border.
+
+```lisp
+(setq x-underline-at-descent-line t)
+```
+
+# Bugs & Improvements
+
+Please, report any problems that you find on the projects integrated
+issue tracker. If you've added some improvements and you want them
+included upstream don't hesitate to send me a patch or even better - a
+GitHub pull request.
+
+# FAQ
+
+## Stand-alone manual installation
+
+Save the following files in a folder that's on your Emacs' `load-path`:
+
+* [dash.el](https://raw.githubusercontent.com/magnars/dash.el/master/dash.el) - [dash](https://github.com/magnars/dash.el), a modern list library for Emacs
+* [solarized.el](https://raw.githubusercontent.com/bbatsov/solarized-emacs/master/solarized.el) - the solarized theme
+
+Save the following files into `~/.emacs.d/themes`:
+
+* [solarized-light-theme.el](https://raw.githubusercontent.com/bbatsov/solarized-emacs/master/solarized-light-theme.el) 
+* [solarized-dark-theme.el](https://raw.githubusercontent.com/bbatsov/solarized-emacs/master/solarized-dark-theme.el)
+
+Add this your `.emacs.d`:
+
+```lisp
+(add-to-list 'custom-theme-load-path "~/.emacs.d/themes")
+```
+
+Now you can load the theme with the interactive function `load-theme`.
+
+
+# Contributors
+
+- [Thomas Frössman](http://t.jossystem.se)
+
+(Add yourself to the list)

spacemacs/extensions/solarized-theme/solarized-dark-theme.el

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+(require 'solarized)
+
+(deftheme solarized-dark "The dark variant of the Solarized colour theme")
+
+(create-solarized-theme 'dark 'solarized-dark)
+
+(provide-theme 'solarized-dark)

spacemacs/extensions/solarized-theme/solarized-light-theme.el

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+(require 'solarized)
+
+(deftheme solarized-light "The light variant of the Solarized colour theme")
+
+(create-solarized-theme 'light 'solarized-light)
+
+(provide-theme 'solarized-light)

spacemacs/extensions/solarized-theme/solarized-theme-pkg.el

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+(define-package
+  "solarized-theme"
+  "1.1.0"
+  "The Solarized color theme, ported to Emacs."
+  '((dash "2.6.0")))

spacemacs/extensions/solarized-theme/solarized-theme-utils.el

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+;;; solarized-theme-utils.el --- Utilities for solarized theme development
+
+;; Copyright (C) 2012 Thomas Frössman
+
+;; Author: Thomas Frössman <thomasf@jossystem.se>
+;; URL: http://github.com/bbatsov/solarized-emacs
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Development utilities, these are not needed for normal theme usage
+;;
+
+;;;; Code:
+(require 'cl)
+(require 'solarized)
+
+(defun solarized-import-faces (&optional regexp already-defined)
+  "Imports current effective face definitions by regular expression
+in the format of solarized-theme.el."
+  (interactive (list (read-regexp "List faces matching regexp")))
+  (let*
+      ((all-faces (zerop (length regexp)))
+       (faces
+        (delq nil
+              (mapcar (lambda (face)
+                        (let ((s (symbol-name face)))
+                          (when (or all-faces (string-match regexp s))
+                            face)))
+                      (sort (face-list) #'string-lessp)))))
+    (mapc (lambda(face)
+            (when (or (not (get face 'theme-face)) already-defined)
+              (insert (format
+                       "`(%s ((,class %s)))%s
+"
+                       face
+                       (let (result)
+                         (dolist (entry face-attribute-name-alist result)
+                           (let* ((attribute (car entry))
+                                  (value (face-attribute face attribute)))
+                             (unless (eq value 'unspecified)
+                               (setq result
+                                     (nconc (list attribute
+                                                  (cond
+                                                   ((member* attribute
+                                                             '(":background"
+                                                               ":foreground")
+                                                             :test 'string=)
+                                                    (format "\"%s\"" value))
+                                                   (t value))) result))))))
+                       (if (get face 'theme-face)
+                           (format " ;; Already set by current theme!")
+                         "")))))
+	  faces)))
+
+;; Local Variables:
+;; byte-compile-warnings: (not cl-functions)
+;; End:
+(provide 'solarized-theme-utils)
+;;; solarized-theme-utils.el ends here

spacemacs/extensions/solarized-theme/solarized-theme.el

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+(require 'solarized-dark-theme)
+(require 'solarized-light-theme)
+
+(provide 'solarized-theme)