Why designing UI with VisualBasic, WinForms builder was so much easier than with Sketch?

I remember, back in the days when we were mostly making applications for Windows using VisualBasic or WinForms, making a good looking app using VisualBasic or Winforms/WPF builder was easy.

It almost didn't matter how you dropped all of your buttons/controls on a page, it would always look good.

Just drop 3 buttons and it even looks fine!

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Now, myself, being a developer have to use Sketch from time to time. But the trend is opposite: no matter how I arrange those rectangles and shuffle colors on the page - it always comes up as crap.

No matter how I mix colors and add shadows, it still looks like crap!

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So why is it so? Why was WinForms so tolerant? And why does Sketch requires such a sharp graphical design skill?

Is there some fundamental principle or difference between those tools, so that one is tolerant, whilst another one so intolerant to lack of graphic design talent?

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