frequency-separation-retouching: update

frequency-separation-retouching.md

@@ -1,21 +1,28 @@
 ---
-title: Frequency Separation Retouching
+title: Frequency separation retouching
 category: Others
+layout: 2017/sheet
 ---
 
-Frequency separation retouching in Photoshop:
+### Frequency separation retouching in Photoshop
+
+Duplicate the layer twice. Perform these in each layer:
+{: .-setup}
+
+#### Lower layer
 
-1. Duplicate the layer twice
-2. Lower layer:
 - Apply **Gaussian Blur**
-3. Upper layer:
+
+#### Upper layer
+
 - Set layer mask to **Linear light**
 - Image → **Apply Image**
-    - Layer: select the lower layer
+  - Layer: _(select the lower layer)_
-    - Blending mode: Subtract
+  - Blending mode: `Subtract`
-    - Scale: 2
+  - Scale: `2`
-    - Offset: 128
+  - Offset: `128`
 
-## Reference
+### Reference
 
 - <https://phlearn.com/amazing-power-frequency-separation-retouching-photoshop>
+{: .-also-see}