feat: 優化代碼高亮系統並修復樣式問題 (v5.5.4-b1)

- 簡化 config.pug 中的高亮設置檢測邏輯
- 重構滾動條樣式，提取為可重用的 $scrollbar-style
- 優化 JavaScript 代碼高亮邏輯，增加對默認高亮的支持
- 修復打賞彈窗的邊框圓角應用位置
- 改善代碼高亮工具的檢測和處理流程

layout/includes/head/config.pug

@@ -72,20 +72,16 @@
     })
   }
 
-  let highlight = 'undefined'
-  let syntaxHighlighter = config.syntax_highlighter
-  let highlightEnable = syntaxHighlighter ? ['highlight.js', 'prismjs'].includes(syntaxHighlighter) : (config.highlight.enable || config.prismjs.enable)
-  if (highlightEnable) {
-    const { copy, language, height_limit, fullpage, macStyle } = theme.code_blocks
-    highlight = JSON.stringify({
-      plugin: syntaxHighlighter ? syntaxHighlighter : config.highlight.enable ? 'highlight.js' : 'prismjs',
-      highlightCopy: copy,
-      highlightLang: language,
-      highlightHeightLimit: height_limit,
-      highlightFullpage: fullpage,
-      highlightMacStyle: macStyle
-    })
-  }
+  let highlightProvider = config.syntax_highlighter || (config.highlight.enable ? 'highlight.js' : config.prismjs.enable ? 'prismjs' : null)
+  const { copy, language, height_limit, fullpage, macStyle, shrink } = theme.code_blocks
+  let highlight = JSON.stringify({
+    plugin: highlightProvider,
+    highlightCopy: copy,
+    highlightLang: language,
+    highlightHeightLimit: height_limit,
+    highlightFullpage: fullpage,
+    highlightMacStyle: macStyle
+  })
 
 script.
   const GLOBAL_CONFIG = {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hexo-theme-butterfly",
-  "version": "5.5.3",
+  "version": "5.5.4-b1",
   "description": "A Simple and Card UI Design theme for Hexo",
   "main": "package.json",
   "scripts": {

source/css/_highlight/highlight.styl

@@ -24,6 +24,14 @@ wordWrap = $highlight_enable && !$highlight_line_number && hexo-config('code_blo
   --hlscrollbar-bg: lighten(#121212, 5)
   --hlexpand-bg: linear-gradient(180deg, rgba(lighten(#121212, 2), .6), rgba(lighten(#121212, 2), .9))
 
+$scrollbar-style
+  // scrollbar - firefox
+  @-moz-document url-prefix()
+    scrollbar-color: var(--hlscrollbar-bg) transparent
+
+  &::-webkit-scrollbar-thumb
+    background: var(--hlscrollbar-bg)
+
 if $highlight_enable
   @require 'highlight/index'
 
@@ -88,6 +96,11 @@ $code-block
         &:hover
           border-bottom-color: var(--hl-color)
 
+    &.default
+      pre
+        padding: 10px 20px
+        @extend $scrollbar-style
+
     &.copy-true
       user-select: all
       -webkit-user-select: all