Why does a tag have the same attribute twice, and with different values?

Question

I was asked if we could support your format in our product and I just took at look at your boiler plate example. My XML editor immediately noted a duplicate attribute for a labeled-knob - see code below

 <labeled-knob x="725" y="75" width="90" textSize="16" textColor="AA000000"
                trackForegroundColor="CC000000" trackBackgroundColor="66999999"
                label="Reverb" type="percent" minValue="0" maxValue="100"
                textColor="FF000000" value="50">

What's the scoop?

Answer 1

Probably a small mistake when editing this preset which Decent Sampler parser somehow overlooks. The last instance maybe overrides the first or the last is ignored.
I would try to set the last one to a very different color like red (for example) to understand what Decent Sampler does in this case.