These are some custom Qt components and widgets I built over time. All of them are open-source and either licensed under MIT or GPL.
Custom widget
Tab Widget with fancy animations
FlatTabWidget
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Extended widget
Stacked Widget with fancy animations
SlidingStackedWidget
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Extended widget
ListView with movable items
QEditableListView
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Custom widget
Animated liquid 10-band equalizer
Liquid Equalizer
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Extended widget
QSlider with animations
QAnimatedSlider
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Custom widget
GraphicEQ from EAPO
GraphicEQWidget
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Custom widget
An unspectacular equalizer without interpolation
QEqualizerView
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