mode-line: fix color space for spaceline separators on MacOS

README.md

@@ -167,28 +167,6 @@ After completing the Spacemacs [install process](#install), then it's also
 recommended to add the [osx layer][] to your [dotfile][]. Installation
 instructions are available in the documentation for the [osx layer][].
 
-If the powerline separators on the spaceline have a different (less saturated)
-color than the rest of the line, then you can add the following snippet to the
-`dotspacemacs/user-config` section in your `~/.spacemacs` file:
-
-```elisp
-(setq ns-use-srgb-colorspace nil)
-```
-
-Keep in mind that this is not an ideal solution as it affects all colours in
-Emacs. Another option is to change the powerline separators. For example to
-`alternate` or `bar`, they diminish the color difference. Or change them to
-`utf-8`, which makes them go away completely, without having to change colour
-space. In order to change the powerline separators, put the following snippet in
-the `dotspacemacs/user-config` section of your `~/.spacemacs` file:
-
-```eslip
-(setq powerline-default-separator 'utf-8)
-```
-
-For more information about powerline separators, please refer to the
-[powerline documentation][]
-
 ### Windows
 You can download good quality builds from the [emacs-w64 project][emacs-for-windows].
 It is recommended to install the most recent [stable build][emacs-for-windows-stable].

layers/+os/osx/README.org

@@ -21,6 +21,7 @@ globally defines common OSX keybindings.
 ** Features:
   - ~⌘~ is set to ~hyper~ and ~⌥~ is set to ~meta~
   - In =dired= use =gls= instead of =ls=
+  - Fix separator colors of Spaceline mode-line
 
 * Philosophy
 While this layer enables common OSX bindings, it does not implement OSX

layers/+spacemacs/spacemacs-modeline/packages.el

@@ -71,6 +71,7 @@
                            '(spacemacs custom))
                      (spacemacs/mode-line-separator))
                 'wave)
+            powerline-image-apple-rgb (spacemacs/system-is-mac)
             powerline-scale (or (spacemacs/mode-line-separator-scale) 1.5)
             powerline-height (spacemacs/compute-mode-line-height))
       (spacemacs|do-after-display-system-init