minor adjustments to touchring

- less vignette on Light.mat
- adjusted alpha and contrast on ButtonCover.mat
- adjusted cab model to reduce uv distortion on the button cover (extra loops)

Assets/Material/ButtonCover.mat

@@ -106,8 +106,8 @@ Material:
     m_Floats:
     - _AlphaClip: 0
     - _Alpha_Brightness: 0.5
-    - _Alpha_Contrast: 0.9
-    - _Alpha_Multiplier: 7.5
+    - _Alpha_Contrast: 0.55
+    - _Alpha_Multiplier: 2.68
     - _Blend: 0
     - _BumpScale: 1
     - _ClearCoatMask: 0

Assets/Material/WacUnity/Light.mat

@@ -127,7 +127,7 @@ Material:
     - _SrcBlend: 1
     - _Surface: 0
     - _UVSec: 0
-    - _Vignett: 0.8
+    - _Vignett: 0.65
     - _VignettHardness: 0
     - _WorkflowMode: 1
     - _ZWrite: 1