v1.0.17: modern multi-color app icon with depth and detail

Redesigned launcher icon:
- Background: deep violet #2E1065 → purple #6D28D9 → navy #1E40AF
- Three concentric glow rings (white, layered alpha) for depth
- Upload arrow: neon cyan #67E8F9 → sky blue #38BDF8
- Download arrow: hot pink #F472B6 → coral #FB923C
- Double-layer center orb (frosted + solid white)
- 4 cardinal accent sparks (cyan/indigo/pink/emerald)
- 4 diagonal mini sparks (light cyan/peach/violet/green)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/src/main/res/drawable/ic_launcher_background.xml

@@ -3,7 +3,7 @@
     <gradient
         android:type="linear"
         android:angle="135"
-        android:startColor="#4338CA"
-        android:centerColor="#7C3AED"
-        android:endColor="#0891B2"/>
+        android:startColor="#2E1065"
+        android:centerColor="#6D28D9"
+        android:endColor="#1E40AF"/>
 </shape>