在 Node-RED 中，你可以使用多種不同的圖示集。以下是一些常用的圖示集：
Angular Material Icons：Angular Material Icons是Angular Material提供的一套圖示集，它提供了各種不同風格和主題的圖示¹²。你可以根據自己的喜好和專案需求來選擇適合的圖示。
Font Awesome：Font Awesome是一套網路上的圖示庫和工具包，被數百萬的設計師、開發者和內容創作者所使用⁴。它提供了可立即自定義的可縮放向量圖示，你可以使用CSS的所有特性對它們進行更改，包括大小、顏色、陰影或者其它任何支援的效果⁷。
Weather Icons Lite：Weather Icons Lite是一套輕量級的天氣主題圖示集，它已經整合在Node-RED中，或者可以在任何需要高品質天氣和月相圖示的專案中使用¹⁴。
這些圖示集提供了各種不同風格和主題的圖示，你可以根據自己的喜好和專案需求來選擇適合的圖示。在Node-RED中，你可以透過相應的節點或設定來使用這些圖示。如果有其他問題或需要進一步的說明，請隨時告訴我。
來源: 與 Bing 的交談， 2023/12/18
(1) Icon | Angular Material. https://v7.material.angular.io/components/icon/overview.
(2) Mat-Icon List : 900+ Angular Material Icons. https://www.angularjswiki.com/angular/angular-material-icons-list-mat-icon-list/.
(3) Font Awesome. https://fontawesome.com/.
(4) Font Awesome，一套绝佳的图标字体库和CSS框架. https://fontawesome.dashgame.com/.
(5) Paul-Reed/weather-icons-lite: A lightweight version of Weather-Icons - GitHub. https://github.com/Paul-Reed/weather-icons-lite.
(6) Material Symbols and Icons - Google Fonts. https://fonts.google.com/icons.
(7) Font Awesome Icons. https://fontawesome.com/v4.7.0/icons/.
(8) Font Awesome - Wikipedia. https://en.wikipedia.org/wiki/Font_Awesome.
(9) Font Awesome, the iconic font and CSS toolkit. https://fontawesome.com/v4/.
(10) Node appearance : Node-RED. https://nodered.org/docs/creating-nodes/appearance.
(11) kareem-elnagar/material-design-icons-for-node-red - GitHub. https://github.com/kareem-elnagar/material-design-icons-for-node-red.
(12) Node-red node icons meaning and purpose? - Stack Overflow. https://stackoverflow.com/questions/46183579/node-red-node-icons-meaning-and-purpose.
(13) Node Red Icons – Free Download SVG, PNG, GIF. https://icons8.com/icons/set/node--red.
(14) "node red" Icon - Download for free – Iconduck. https://iconduck.com/icons/11305/node-red.
(15) GitHub - Paul-Reed/weather-icons: Node-red weather icons. https://github.com/Paul-Reed/weather-icons.
(16) Weather Icons & Symbols. https://www.flaticon.com/free-icons/weather.
(17) Weather Icons - 2201 free Icons PNG, SVG, ICO or ICNS. https://icon-icons.com/search/icons/weather.
(18) undefined. https://www.google.com/search?q=agender+icon.
(19) undefined. http://weathericons.io.
(20) undefined. https://github.com/Paul-Reed/weather-icons.git.