Temporary purple change to the homepage header
Temporary purple change to the homepage header

Tomorrow (2018-12-03) is International Day of Persons with Disabilities. @JuliannaR suggested, making our homepage purple to commemorate it, per <https://www.purplespace.org/purple-light-up> and <https://www.un.org/development/desa/disabilities/news/dspd/idpd.html>. 

This changes the homepage header background colour behind "People expect government services to be simple and easy to use." This can be reverted back as of the following day.
cds-snc/digital-canada-ca,cds-snc/digital-canada-ca