colors: add adaptableBlack

Used in template icons

damus/Assets.xcassets/Colors/DamusAdaptableBlack.colorset/Contents.json

@@ -0,0 +1,38 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0x00",
+          "green" : "0x00",
+          "red" : "0x00"
+        }
+      },
+      "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0xFF",
+          "green" : "0xFF",
+          "red" : "0xFF"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

damus/Components/DamusColors.swift

@@ -10,6 +10,7 @@ import SwiftUI
 
 class DamusColors {
     static let adaptableGrey = Color("DamusAdaptableGrey")
+    static let adaptableBlack = Color("DamusAdaptableBlack")
     static let white = Color("DamusWhite")
     static let black = Color("DamusBlack")
     static let brown = Color("DamusBrown")