Merge branch '31-keep-first-skin-only' into 'master'

Resolve "Keep first skin only"

Closes #31

See merge request !28

icons/skins/symbols/5.svg

-<?xml version="1.0" encoding="UTF-8"?>
-<svg enable-background="new 0 0 100 100" version="1.1" viewBox="0 0 100 100" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" ry="2" fill="none"/><rect width="100" height="100" fill="#c5c5c5" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-opacity=".5" stroke-width="0"/><g transform="matrix(.87613 0 0 .87613 6.1933 6.1933)" fill="none" stroke="#121212" stroke-linecap="round" stroke-linejoin="round" stroke-width="14"><rect x="47.741" y="15.282" width="4.5185" height="69.435"/><rect x="15.402" y="47.465" width="69.196" height="5.0708"/></g></svg>

icons/skins/symbols/6.svg

-<?xml version="1.0" encoding="UTF-8"?>
-<svg enable-background="new 0 0 100 100" version="1.1" viewBox="0 0 100 100" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" ry="2" fill="none"/><rect width="100" height="100" fill="#c5c5c5" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-opacity=".5" stroke-width="0"/><g transform="rotate(45 50 50)" fill="none" stroke="#121212" stroke-linecap="round" stroke-linejoin="round" stroke-width="14"><rect x="47.741" y="15.282" width="4.5185" height="69.435"/><rect x="15.402" y="47.465" width="69.196" height="5.0708"/></g></svg>

icons/skins/symbols/7.svg

-<?xml version="1.0" encoding="UTF-8"?>
-<svg enable-background="new 0 0 100 100" version="1.1" viewBox="0 0 100 100" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" ry="2" fill="none"/><rect width="100" height="100" fill="#c5c5c5" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-opacity=".5" stroke-width="0"/><circle cx="50" cy="50" r="27.298" fill="#121212" stroke="#121212" stroke-linecap="round" stroke-linejoin="round" stroke-width="14"/></svg>

icons/skins/symbols/8.svg

-<?xml version="1.0" encoding="UTF-8"?>
-<svg enable-background="new 0 0 100 100" version="1.1" viewBox="0 0 100 100" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" ry="2" fill="none"/><rect width="100" height="100" fill="#c5c5c5" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-opacity=".5" stroke-width="0"/><path transform="rotate(-4.8261 273.96 -149.1)" d="m52.681 60.363c-1.9927 1.1506-17.752-11.111-20.045-11.3-2.2178-0.18265-19.136 9.4253-20.79 7.9363-1.7101-1.5396 5.0812-20.316 4.5522-22.556-0.51164-2.1657-14.877-15.287-13.972-17.32 0.93585-2.1022 20.892-1.4456 22.859-2.6408 1.9016-1.1558 9.9417-18.873 12.155-18.641 2.2885 0.24044 7.8309 19.423 9.5752 20.924 1.6869 1.4514 21.022 3.6229 21.485 5.7996 0.4785 2.2508-16.052 13.45-16.941 15.572-0.85907 2.0529 3.0505 21.112 1.1233 22.225z" fill="none" stroke="#121212" stroke-linecap="round" stroke-linejoin="round" stroke-width="14"/></svg>

lib/layout/color_theme.dart

@@ -11,39 +11,6 @@ class ColorTheme {
       0x38ffff,
       0xf2739d,
     ],
-    'retro': [
-      0xffffff,
-      0x813237,
-      0x8296ff,
-      0xffd700,
-      0x000000,
-      0x1b13c8,
-      0x008834,
-      0xcc5200,
-      0xff00ff,
-    ],
-    'numbers': [
-      0xffffff,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-    ],
-    'symbols': [
-      0xffffff,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-      0xc5c5c5,
-    ],
   };
   static int defaultBorderColor = 0x808080;
 

lib/provider/data.dart

@@ -10,7 +10,7 @@ class Data extends ChangeNotifier {
   List _availableLevelValues = ['easy', 'medium', 'hard', 'nightmare'];
   List _availableSizeValues = ['small', 'medium', 'large', 'extra'];
   List _availableColorsValues = ['5', '6', '7', '8'];
-  List _availableSkinValues = ['default', 'retro', 'numbers', 'symbols'];
+  List _availableSkinValues = ['default'];
 
   List get availableLevelValues => _availableLevelValues;
   List get availableSizeValues => _availableSizeValues;