"If a parameter value contains an equals sign, the parameter name must be declared explicitly." This means that if you want to include a
URL in your quote, and if that
URL contains an equals sign, then you must explicitly declare the parameter. All that means is that you should add "1=", "2=", or "3=", as appropriate, ahead of your quote text, speaker, or source, like this:
1=Quote text|2=Person|3=Source|color=silver|size=360%