Sidebar hides when clicking background. (Want to still display sidebar even clicks background.) 點擊背景區域，側邊欄會被隱藏(希望不要隱藏)

[eden0521]

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Issue Checklist

• I am using the latest version of NexT.
• I have read the relevant documents of Hexo and NexT.
• I have reviewed the latest Roadmap on GitHub and searched for current issues, which does not help me.

---

Expected behavior

Want to still display sidebar even clicks background.
點擊背景，希望側邊欄不要隱藏

Actual behavior

Sidebar hides when clicking background.
點擊背景，側邊欄會隱藏

Steps to reproduce the behavior

1. In _config.yml, set "scheme: Mist".
2. In _config.yml, set "display: always".
3. run "hexo s", when clicking background(except article, header or bottom area), sidebar will hide.

• 在_config.yml, 設定 "scheme: Mist".
• 在_config.yml, 設定 "display: always".
• 執行 "hexo s"，當點擊背景區域(不包含文章、頁首和頁尾區域)，側邊欄會隱藏起來。

Environment Information

Node.js and NPM Information

node v10.16.0
npm 6.9.0

Package dependencies Information

+-- hexo@4.2.0
+-- hexo-admin@2.3.0
+-- hexo-deployer-git@2.1.0
+-- hexo-generator-archive@1.0.0
+-- hexo-generator-category@1.0.0
+-- hexo-generator-index@1.0.0
+-- hexo-generator-searchdb@1.3.0
+-- hexo-generator-sitemap@2.0.0
+-- hexo-generator-tag@1.0.0
+-- hexo-renderer-ejs@1.0.0
+-- hexo-renderer-marked@2.0.0
+-- hexo-renderer-stylus@1.1.0
+-- hexo-server@1.0.0
`-- hexo-symbols-count-time@0.7.1

NexT Configuration

# ---------------------------------------------------------------
# Scheme Settings
# ---------------------------------------------------------------
# Schemes
#scheme: Muse
scheme: Mist
#scheme: Pisces
#scheme: Gemini

# ---------------------------------------------------------------
# Sidebar Settings
# See: https://theme-next.org/docs/theme-settings/sidebar
# ---------------------------------------------------------------
  # Sidebar Display (only for Muse | Mist), available values:
  #  - post    expand on posts automatically. Default.
  #  - always  expand for all pages automatically.
  #  - hide    expand only when click on the sidebar toggle icon.
  #  - remove  totally remove sidebar including sidebar toggle.
  display: always

Other Information

It seems not to happen in Next 6.4.0 version that I installed before. Or is there any config settings can solve the problem? Thanks.
因為我之前在Next 6.4.0版本沒這個問題，是有哪裡可以設定不要隱藏嗎？謝謝。

[welcome]

Thanks for opening this issue, maintainers will get back to you as soon as possible!

[sli1989]

related #607 #964

[jiangtj]

@sli1989 I saw that the dimmer option was added in #607, but it does not exist on the master(#1496), where was it removed (for what reason)?

[sli1989]

because of #820

[stale]

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