Signed-off-by: falkTX <falktx@falktx.com>

Building with Qt 5.15 failed with the following error:

../widgets/pixmapdial.cpp:231:26: error: aggregate ‘QPainterPath ballPath’ has incomplete type and cannot be defined
  231 |             QPainterPath ballPath;
      |                          ^~~~~~~~
../widgets/pixmapdial.cpp:278:26: error: aggregate ‘QPainterPath ballPath’ has incomplete type and cannot be defined
  278 |             QPainterPath ballPath;
      |                          ^~~~~~~~

Signed-off-by: Alex Tsitsimpis <alex.tsitsimpis@gmail.com>

Signed-off-by: falkTX <falktx@falktx.com>

Code is not that heavy on audio DSP that really makes a difference

This doesn't mean everything is ready for v1.0 release,
just that it's coming soon