Issue
This is a troubleshooting guide for when you have changed the colour of a section of your email/landing page but do not see the updated colour viewing online. For example, you may have changed the background colour of your email.
The problem we are solving is when you publish the page and click 'View online' to preview the page on a browser, and you find the colour has not changed.
Your browser may be storing the old CSS document in its cache, and pulling the old colour from this cached CSS document. Browsers do this so they do not need to repeatedly load files, and instead just need to grab the file from memory, or the cache.
Solution
To force the browser to load the updated version of the CSS document with the new background colour, you will need to "hard refresh" your browser (this is CTRL + F5 for Google Chrome, it may be a different key combination if you use a different browser).
If this does not work, you will need to go into your browser settings to empty/reset your browser's cache.
Once the cache has been emptied/reset, it will force the browser to load the latest version of the CSS document, and the colour chosen in the colour picker should now appear.