refactor: group stow packages into common, mac and kde

Split the packages by platform so each app stays an opt-in Stow package
under common/, mac/ or kde/. KDE gets its own Fastfetch, Helium and
Spectacle packages, and darwin-breeze becomes kde/theme. The READMEs
document stowing a whole group as well as individual packages.

kde/theme/.local/share/color-schemes/DarwinBreezeDark.colors

@@ -0,0 +1,165 @@
+# macOS-inspired colors for Breeze (dark variant).
+# Header and Window share one color so the title bar merges into the toolbar.
+
+[ColorEffects:Disabled]
+Color=56,56,56
+ColorAmount=0
+ColorEffect=0
+ContrastAmount=0.65
+ContrastEffect=1
+IntensityAmount=0.1
+IntensityEffect=2
+
+[ColorEffects:Inactive]
+ChangeSelectionColor=true
+Color=112,111,110
+ColorAmount=0.025
+ColorEffect=2
+ContrastAmount=0.1
+ContrastEffect=2
+Enable=false
+IntensityAmount=0
+IntensityEffect=0
+
+[Colors:Button]
+BackgroundAlternate=109,109,109
+BackgroundNormal=93,93,93
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=65,156,255
+ForegroundInactive=154,154,154
+ForegroundLink=65,156,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=230,230,230
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[Colors:Complementary]
+BackgroundAlternate=40,40,40
+BackgroundNormal=30,30,30
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=65,156,255
+ForegroundInactive=154,154,154
+ForegroundLink=65,156,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=221,221,221
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[Colors:Header]
+BackgroundAlternate=40,40,40
+BackgroundNormal=40,40,40
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=65,156,255
+ForegroundInactive=154,154,154
+ForegroundLink=65,156,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=222,222,222
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[Colors:Header][Inactive]
+BackgroundAlternate=36,36,36
+BackgroundNormal=36,36,36
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=65,156,255
+ForegroundInactive=128,128,128
+ForegroundLink=65,156,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=154,154,154
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[Colors:Selection]
+BackgroundAlternate=25,135,255
+BackgroundNormal=0,122,255
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=255,255,255
+ForegroundInactive=222,222,222
+ForegroundLink=255,255,255
+ForegroundNegative=255,200,200
+ForegroundNeutral=255,220,180
+ForegroundNormal=255,255,255
+ForegroundPositive=200,255,210
+ForegroundVisited=230,210,255
+
+# macOS turns the selection gray when the window loses focus.
+[Colors:Selection][Inactive]
+BackgroundAlternate=70,70,70
+BackgroundNormal=70,70,70
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=255,255,255
+ForegroundInactive=222,222,222
+ForegroundLink=255,255,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=255,255,255
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[Colors:Tooltip]
+BackgroundAlternate=46,46,46
+BackgroundNormal=40,40,40
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=65,156,255
+ForegroundInactive=154,154,154
+ForegroundLink=65,156,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=222,222,222
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[Colors:View]
+BackgroundAlternate=37,37,37
+BackgroundNormal=30,30,30
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=65,156,255
+ForegroundInactive=154,154,154
+ForegroundLink=65,156,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=221,221,221
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[Colors:Window]
+BackgroundAlternate=46,46,46
+BackgroundNormal=40,40,40
+DecorationFocus=0,122,255
+DecorationHover=0,122,255
+ForegroundActive=65,156,255
+ForegroundInactive=154,154,154
+ForegroundLink=65,156,255
+ForegroundNegative=255,74,76
+ForegroundNeutral=255,146,48
+ForegroundNormal=222,222,222
+ForegroundPositive=48,209,88
+ForegroundVisited=191,90,242
+
+[General]
+ColorScheme=DarwinBreezeDark
+Name=Darwin Breeze Dark
+shadeSortColumn=true
+
+[KDE]
+contrast=4
+
+[WM]
+activeBackground=40,40,40
+activeBlend=40,40,40
+activeForeground=222,222,222
+inactiveBackground=36,36,36
+inactiveBlend=36,36,36
+inactiveForeground=154,154,154

kde/theme/.local/share/plasma/look-and-feel/dev.trivk.darwinbreeze.dark/contents/defaults

@@ -0,0 +1,24 @@
+[kdeglobals][KDE]
+widgetStyle=Breeze
+
+[kdeglobals][General]
+ColorScheme=DarwinBreezeDark
+
+[kdeglobals][Icons]
+Theme=breeze-dark
+
+[plasmarc][Theme]
+name=default
+
+[kcminputrc][Mouse]
+cursorTheme=breeze_cursors
+
+[kwinrc][WindowSwitcher]
+LayoutName=org.kde.breeze.desktop
+
+[kwinrc][DesktopSwitcher]
+LayoutName=org.kde.breeze.desktop
+
+[kwinrc][org.kde.kdecoration2]
+library=org.kde.breeze
+theme=Breeze

kde/theme/.local/share/plasma/look-and-feel/dev.trivk.darwinbreeze.dark/metadata.json

@@ -0,0 +1,17 @@
+{
+    "KPackageStructure": "Plasma/LookAndFeel",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Name": "trivk"
+            }
+        ],
+        "Category": "",
+        "Description": "Breeze in macOS-inspired colors (dark)",
+        "Id": "dev.trivk.darwinbreeze.dark",
+        "License": "GPL-2.0-or-later",
+        "Name": "Darwin Breeze Dark",
+        "Version": "1.0"
+    },
+    "X-Plasma-APIVersion": "2"
+}