Displaying Random Selection from Dataset

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2 
1) The rich text field is not picking up the theme info from the rich text entry in the dataset...is there some other property type beside .html that I should be utilising?

Perhaps you need this ...
https://www.wix.com/velo/reference/$w/richtextbox/value 

2) The use of .image for the image doesn't appear to work....what should I actually be doing here?
let imageSource = $w("#myImage").src;
"wix:image://v1/68d3a9_1de7529c444b4c9eb38401f8efe0cad2.jpg/flowers.jpg#originWidth=1970&originHeight=112


3) How do I connect a new link to a button in a similar fashion?
$w("#myElement").link = "http://wix.com";
$w("#myElement").target = "_blank";