[gnome-shell/wip/jimmac/HIG-colors] style: Sync default colors with libadwaita

[Jakub Steiner <jimmac src gnome org>]

commit f4e03aa440ac7919f1caad910b7aa52cf6da8801
Author: Jakub Steiner <jimmac gmail com>
Date:   Mon Apr 25 14:40:29 2022 +0200

    style: Sync default colors with libadwaita
    
    - include GNOME HIG color palette
    - sync warning, error, success and destructive colors with libadwaita,
      improving contrast for dark theme
    
    Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2280

 data/theme/gnome-shell-sass/_colors.scss | 56 +++++++++++++++++++++++++++++---
 1 file changed, 52 insertions(+), 4 deletions(-)
---
diff --git a/data/theme/gnome-shell-sass/_colors.scss b/data/theme/gnome-shell-sass/_colors.scss
index 7dfe666248..73db6fe03f 100644
--- a/data/theme/gnome-shell-sass/_colors.scss
+++ b/data/theme/gnome-shell-sass/_colors.scss
@@ -1,6 +1,54 @@
 // When color definition differs for dark and light variant,
 // it gets @if-ed depending on $variant
 
+//GNOME Color Palette
+$blue_1: #99c1f1;
+$blue_2: #62a0ea;
+$blue_3: #3584e4;
+$blue_4: #1c71d8;
+$blue_5: #1a5fb4;
+$green_1: #8ff0a4;
+$green_2: #57e389;
+$green_3: #33d17a;
+$green_4: #2ec27e;
+$green_5: #26a269;
+$yellow_1: #f9f06b;
+$yellow_2: #f8e45c;
+$yellow_3: #f6d32d;
+$yellow_4: #f5c211;
+$yellow_5: #e5a50a;
+$orange_1: #ffbe6f;
+$orange_2: #ffa348;
+$orange_3: #ff7800;
+$orange_4: #e66100;
+$orange_5: #c64600;
+$red_1: #f66151;
+$red_2: #ed333b;
+$red_3: #e01b24;
+$red_4: #c01c28;
+$red_5: #a51d2d;
+$purple_1: #dc8add;
+$purple_2: #c061cb;
+$purple_3: #9141ac;
+$purple_4: #813d9c;
+$purple_5: #613583;
+$brown_1: #cdab8f;
+$brown_2: #b5835a;
+$brown_3: #986a44;
+$brown_4: #865e3c;
+$brown_5: #63452c;
+$light_1: #ffffff;
+$light_2: #f6f5f4;
+$light_3: #deddda;
+$light_4: #c0bfbc;
+$light_5: #9a9996;
+$dark_1: #77767b;
+$dark_2: #5e5c64;
+$dark_3: #3d3846;
+$dark_4: #241f31;
+$dark_5: #000000;
+
+
 $base_color: if($variant == 'light', #fff, darken(desaturate(#241f31, 100%), 2%));
 $bg_color: if($variant == 'light', #f6f5f4, lighten($base_color, 5%));
 $fg_color: if($variant == 'light', transparentize(black, .2), white);
@@ -15,10 +63,10 @@ $borders_edge: if($variant == 'light', rgba(255,255,255,0.8), lighten($bg_color,
 $link_color: if($variant == 'light', darken($selected_bg_color, 10%), lighten($selected_bg_color, 20%));
 $link_visited_color: if($variant == 'light', darken($selected_bg_color, 20%), lighten($selected_bg_color, 
10%));
 
-$warning_color: if($variant == 'light', #e5a50a, #f5c211);;
-$error_color: if($variant == 'light', #e01b24, #c01c28);
-$success_color: if($variant == 'light', #2ec27e, #26a269);
-$destructive_color: if($variant == 'light', #e01b24, darken(#e01b24, 10%));
+$warning_color: if($variant == 'light', $yellow_5, #cd9309);
+$error_color: if($variant == 'light', $red_3, $red_4);
+$success_color: if($variant == 'light', $green_4, $green_5);
+$destructive_color: $error_color;
 
 $osd_fg_color: white;
 $osd_bg_color: transparentize(desaturate($bg_color, 100%),0.04);