Question: How can i achieve this kind of look and feel with colored buttons and rounded corners in dialogs for a windows application?

i dont think it can be done using MFC , will wxWidgets or Qt help ? or any other platform?![enter image description here](https://i.stack.imgur.com/i3fmY.png)

Answer: 
The easiest and fastest way to achieve the same UI accross different platforms is to implement it in QML with Qt. Unlike widgets that get automatically styled appropriate to the underlying platform style, QML is entirely platform-independent. You could probably style regular widgets with CSS, or even by reimplementing drawing manually with arbitrary UI API, but it will not be nearly as easy.
It is easy to achieve such a look and feel with **any** GUI framework.

Choose the framework you are most comfortable with, RTFM, roll up your sleeves and get started.

On any framework you will find methods to draw bitmaps of any color and shape and to handle mouse clicks on them. What more do you need?

This is what GUI frameworks DO! They also provide a default set of widgets for the bone lazy and the conventional. You aren't one of those people. are you?