Open-source credits
Last updated 24 October 2026
Fireworks engine
The crackers in our Diwali greetings and on the virtual crackers page are adapted from “Firework Simulator v2” by Caleb Miller (https://codepen.io/MillerTime/pen/XgpNwb), used under the MIT License.
Copyright (c) Caleb Miller.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Christmas tree
The spinning tree of lights in our Christmas greeting is our own code, inspired by the CSS Christmas tree by Jhey Tompkins.
Photos and fonts
The sample family photo is “A family posing for a picture” by Nilanka Kariyawasam on Unsplash (https://unsplash.com/photos/AKk37Avu6o8), used under the Unsplash License. Other sample photos are also from Unsplash.
Fonts are from Google Fonts and are used under the SIL Open Font License.
