add theme

themes/butterfly/layout/page.pug

@@ -0,0 +1,32 @@
+extends includes/layout.pug
+
+block content
+  - const noCardLayout = ['shuoshuo', '404'].includes(page.type) ? 'nc' : ''
+  - var commentsJsLoad = false
+
+  mixin commentLoad
+    if page.comments !== false && theme.comments.use
+      - commentsJsLoad = true
+      !=partial('includes/third-party/comments/index', {}, {cache: true})
+
+  #page(class=noCardLayout)
+    if top_img === false && page.title
+      .page-title= page.title
+
+    case page.type
+      when 'tags'
+        include includes/page/tags.pug
+        +commentLoad
+      when 'link'
+        include includes/page/flink.pug
+        +commentLoad
+      when 'categories'
+        include includes/page/categories.pug
+        +commentLoad
+      when '404'
+        include includes/page/404.pug
+      when 'shuoshuo'
+        include includes/page/shuoshuo.pug
+      default
+        include includes/page/default-page.pug
+        +commentLoad