LF-34205 Fix scaling error in QColorDialog colour picker

v5.15.2.post6

Merge pull request #10 from seequent/LF-34205-mouse-colour-selection-…

LF-36223 Fix rounding error within QBackingStore

Merge pull request #8 from seequent/LF-36223-grey-lines-in-project-tree

LF-36223 Fix rounding error within QBackingStore

Remove warning about decimal and grouping characters

Merge pull request #4 from seequent/LF-38131-fix-qt-locale-check

LF-38131 Remove warning about decimal and grouping characters

v5.14.2.post3: Merge pull request #2 from seequent/LF-34618-section-layout-line-width

LF-34618 Qt dashed line drawing.