Newbie here !

I am using Intuos 5 on Windows 7, 64bit. I have used MyPaint before and this didn't happen. When I apply greater pressure for thicker color and later lesser pressure on top of the already drawn thicker color, I can clearly that they don't blend with each other.

Here's an example image circled in red : https://www.dropbox.com/s/i23mlj15kzl5k ... a.png?dl=0

The thicker stroke is distinguishable from the ligher stroke. How can I sort this out?

That's because you have probably used a mixing brush on mypaint. Using any of the mix brushes will probably help you.

TheraHedwig wrote:That's because you have probably used a mixing brush on mypaint. Using any of the mix brushes will probably help you.

How do I choose one?

The default ones use a purple or blue paint color to indicate that they are mix brushes, otherwise, us the search bar underneath the grid of preset icons and type in mix.