★BlackWhite

background:qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 255), stop:1 rgba(255, 255, 255, 255));

 

★Czech

background:qconicalgradient(cx:0.5, cy:0.5, angle:0, stop:0 rgba(255, 255, 255, 255), stop:0.373979 rgba(255, 255, 255, 255), stop:0.373991 rgba(33, 30, 255, 255), stop:0.624018 rgba(33, 30, 255, 255), stop:0.624043 rgba(255, 0, 0, 255), stop:1 rgba(255, 0, 0, 255))

★Dutch

qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(255, 0, 0, 255), stop:0.339795 rgba(255, 0, 0, 255), stop:0.339799 rgba(255, 255, 255, 255), stop:0.662444 rgba(255, 255, 255, 255), stop:0.662469 rgba(0, 0, 255, 255), stop:1 rgba(0, 0, 255, 255))

 

★Eye

qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(0, 0, 0, 255), stop:0.19397 rgba(0, 0, 0, 255), stop:0.202312 rgba(122, 97, 0, 255), stop:0.495514 rgba(76, 58, 0, 255), stop:0.504819 rgba(255, 255, 255, 255), stop:0.79 rgba(255, 255, 255, 255), stop:1 rgba(255, 158, 158, 255))

★Flare1

qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(255, 255, 255, 255), stop:0.1 rgba(255, 255, 255, 255), stop:0.2 rgba(255, 176, 176, 167), stop:0.3 rgba(255, 151, 151, 92), stop:0.4 rgba(255, 125, 125, 51), stop:0.5 rgba(255, 76, 76, 205), stop:0.52 rgba(255, 76, 76, 205), stop:0.6 rgba(255, 180, 180, 84), stop:1 rgba(255, 255, 255, 0))

★Flare2

qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(0, 0, 0, 0), stop:0.52 rgba(0, 0, 0, 0), stop:0.565 rgba(82, 121, 76, 33), stop:0.65 rgba(159, 235, 148, 64), stop:0.721925 rgba(255, 238, 150, 129), stop:0.77 rgba(255, 128, 128, 204), stop:0.89 rgba(191, 128, 255, 64), stop:1 rgba(0, 0, 0, 0))

★Flare3

qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(255, 235, 235, 206), stop:0.35 rgba(255, 188, 188, 80), stop:0.4 rgba(255, 162, 162, 80), stop:0.425 rgba(255, 132, 132, 156), stop:0.44 rgba(252, 128, 128, 80), stop:1 rgba(255, 255, 255, 0))

 

★German

qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(0, 0, 0, 255), stop:0.33 rgba(0, 0, 0, 255), stop:0.34 rgba(255, 30, 30, 255), stop:0.66 rgba(255, 0, 0, 255), stop:0.67 rgba(255, 255, 0, 255), stop:1 rgba(255, 255, 0, 255))

★Golden

qconicalgradient(cx:0.5, cy:0.5, angle:0, stop:0 rgba(35, 40, 3, 255), stop:0.16 rgba(136, 106, 22, 255), stop:0.225 rgba(166, 140, 41, 255), stop:0.285 rgba(204, 181, 74, 255), stop:0.345 rgba(235, 219, 102, 255), stop:0.415 rgba(245, 236, 112, 255), stop:0.52 rgba(209, 190, 76, 255), stop:0.57 rgba(187, 156, 51, 255), stop:0.635 rgba(168, 142, 42, 255), stop:0.695 rgba(202, 174, 68, 255), stop:0.75 rgba(218, 202, 86, 255), stop:0.815 rgba(208, 187, 73, 255), stop:0.88 rgba(187, 156, 51, 255), stop:0.935 rgba(137, 108, 26, 255), stop:1 rgba(35, 40, 3, 255))

★Japanese

qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(255, 0, 0, 255), stop:0.479904 rgba(255, 0, 0, 255), stop:0.522685 rgba(255, 255, 255, 255), stop:1 rgba(255, 255, 255, 255))

 

★Norwegian

qlineargradient(spread:repeat, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(255, 0, 0, 255), stop:0.17 rgba(255, 0, 0, 255), stop:0.18 rgba(255, 255, 255, 255), stop:0.210212 rgba(255, 255, 255, 255), stop:0.220212 rgba(0, 16, 255, 255), stop:0.279897 rgba(0, 16, 255, 255), stop:0.289897 rgba(255, 255, 255, 255), stop:0.32 rgba(255, 255, 255, 255), stop:0.33 rgba(255, 0, 0, 255), stop:1 rgba(255, 0, 0, 255))

 

★Pastels

qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(245, 224, 176, 255), stop:0.09 rgba(246, 189, 237, 255), stop:0.14 rgba(194, 207, 246, 255), stop:0.19 rgba(184, 160, 168, 255), stop:0.25 rgba(171, 186, 248, 255), stop:0.32 rgba(243, 248, 224, 255), stop:0.385 rgba(249, 162, 183, 255), stop:0.47 rgba(100, 115, 124, 255), stop:0.58 rgba(251, 205, 202, 255), stop:0.65 rgba(170, 128, 185, 255), stop:0.75 rgba(252, 222, 204, 255), stop:0.805 rgba(206, 122, 218, 255), stop:0.86 rgba(254, 223, 175, 255), stop:0.91 rgba(254, 236, 244, 255), stop:1 rgba(255, 191, 221, 255))

 

★Polish

qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(255, 255, 255, 255), stop:0.495 rgba(255, 255, 255, 255), stop:0.505 rgba(255, 0, 0, 255), stop:1 rgba(255, 0, 0, 255))

★Rainbow

qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(255, 0, 0, 255), stop:0.166 rgba(255, 255, 0, 255), stop:0.333 rgba(0, 255, 0, 255), stop:0.5 rgba(0, 255, 255, 255), stop:0.666 rgba(0, 0, 255, 255), stop:0.833 rgba(255, 0, 255, 255), stop:1 rgba(255, 0, 0, 255))

 

★Sky

qlineargradient(spread:pad, x1:0, y1:1, x2:0, y2:0, stop:0 rgba(0, 0, 0, 255), stop:0.05 rgba(14, 8, 73, 255), stop:0.36 rgba(28, 17, 145, 255), stop:0.6 rgba(126, 14, 81, 255), stop:0.75 rgba(234, 11, 11, 255), stop:0.79 rgba(244, 70, 5, 255), stop:0.86 rgba(255, 136, 0, 255), stop:0.935 rgba(239, 236, 55, 255))

 

★SunRay

qconicalgradient(cx:0, cy:0, angle:135, stop:0 rgba(255, 255, 0, 69), stop:0.375 rgba(255, 255, 0, 69), stop:0.423533 rgba(251, 255, 0, 145), stop:0.45 rgba(247, 255, 0, 208), stop:0.477581 rgba(255, 244, 71, 130), stop:0.518717 rgba(255, 218, 71, 130), stop:0.55 rgba(255, 255, 0, 255), stop:0.57754 rgba(255, 203, 0, 130), stop:0.625 rgba(255, 255, 0, 69), stop:1 rgba(255, 255, 0, 69))

 

★Tropical

qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(9, 41, 4, 255), stop:0.085 rgba(2, 79, 0, 255), stop:0.19 rgba(50, 147, 22, 255), stop:0.275 rgba(236, 191, 49, 255), stop:0.39 rgba(243, 61, 34, 255), stop:0.555 rgba(135, 81, 60, 255), stop:0.667 rgba(121, 75, 255, 255), stop:0.825 rgba(164, 255, 244, 255), stop:0.885 rgba(104, 222, 71, 255), stop:1 rgba(93, 128, 0, 255))

★Wave

qradialgradient(spread:repeat, cx:0.5, cy:0.5, radius:0.077, fx:0.5, fy:0.5, stop:0 rgba(0, 169, 255, 147), stop:0.497326 rgba(0, 0, 0, 147), stop:1 rgba(0, 169, 255, 147))

 

★Wood

qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(255, 178, 102, 255), stop:0.55 rgba(235, 148, 61, 255), stop:0.98 rgba(0, 0, 0, 255), stop:1 rgba(0, 0, 0, 0))

 

Demo:  demo.qss如下设置：

 

QPushButton:open { /* when the button has its menu open */

     

 }