i got you!!
1. click widgets
2. pick ur widget (i usually do colored widget so idk if this works for all the others but it probably will)
should look like this;
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3. get the two color hex things right here on the 2nd row
now what u want is the first and last set of numbers & letters right here
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so take those and plug it into this url
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it should look like; (you need an account to see links)
if i were to use the same set from the pics above
also each widget is unique so if you put a widget on your petpage and that same widget on your ul it won't be right and the numbers will consistently be the same, so you have to make a new one for wherever you wanna put it. tell me if this makes sense lol i hope it does.