#ToolsDockWidgetContents {
background-color: #BEDAFE;
min-width: 100%;
}
#ToolsRibbon::pane {
background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(223, 232, 244, 255), stop:1 rgba(224, 241, 253, 255));
border: 1px solid #90B5E4;
border-radius: 5px;
padding: 1px;
}
#ToolsRibbon {
background-color: #BEDAFE;
min-width: 100%;
left: 0px;
right: 0px;
}
#ToolsRibbon::tab-bar {
left: 5px;
right: 5px;
background-color: #BEDAFE;
min-width: 100%;
}
#ToolsRibbon QTabBar::tab {
margin-top: 5px;
min-width: 55px;
background-color: #BEDAFE;
height: 25px;
border: 1px solid #BEDAFE;
color: #4B7CB4;
border-bottom: 0px solid #BEDAFE;
margin-left: 2px;
margin-right: 2px;
}
#ToolsRibbon QTabBar::tab:selected{
border: 1px solid #90B5E4;
background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(255, 255, 255, 255), stop:0.1 rgba(239, 244, 251, 255), stop:1 rgba(231, 239, 249, 255));
border-bottom: 1px solid #E1EAF5;
border-top-left-radius: 4px;
border-top-right-radius: 4px;
color: #4B7CB4;
}
#ToolsRibbon QTabBar::tab:hover{
border: 1px solid #99BBE8;
background-color: qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.75, fx:0.5, fy:-0.5, stop:0 #BEDAFE, stop:0.5 #BEDAFE, stop:1 rgba(255, 197, 115, 168));
border-top-left-radius: 4px;
border-top-right-radius: 4px;
color: #4B7CB4;
border-bottom: 0px solid rgba(255, 197, 115, 168);
}
#ToolsRibbon QTabBar::tab:selected:hover {
background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(255, 255, 255, 255), stop:0.1 rgba(239, 244, 251, 255), stop:1 rgba(231, 239, 249, 255));
border-top-left-radius: 4px;
border-top-right-radius: 4px;
border-style: solid;
border-width: 1px;
border-color: rgba(255, 197, 115, 150);
border-bottom: 1px solid #E1EAF5;
}
#ToolsRibbon QTabBar::tab:first {
margin-left: 4px;
}
#ToolsRibbon QTabBar::tab:last {
margin-right: 4px;
}
#ToolsRibbon QGroupBox::title {
position: absolute;
subcontrol-origin: padding;
subcontrol-position: bottom center;
min-width: 10000%;
max-width: 10000%;
border-bottom-left-radius: 3px;
border-bottom-right-radius: 3px;
border: 1px solid #B6C8D8;
border-top-style: none;
border-bottom-style: none;
color: #4B7CB4;
background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 #C0D7EF, stop: 1 #BFD7EE);
}
#ToolsRibbon QGroupBox {
background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(218, 229, 242, 255), stop:0.2 rgba(218, 229, 242, 255), stop:0.201 rgba(198, 215, 236, 255), stop:1 rgba(213, 229, 243, 255));
border: 1px solid #B6C8D8;
border-radius: 3px;
}
Requirements:
The dockwidget contents widget must be named "ToolsDockWidgetContents"
The tabwidget must be named "ToolsRibbon"
Also:
The use of the microsoft ribbon TPB3D tab-bar is not illegal unless you are directly competing with the microsoft applications that use the ribbon competing with TPB3D
The microsoft version you are thinking of is the download from the microsoft website, which you cant use unless you agree to the microsoft license (which you can't get unless you first "sign" a non disclosure agreement) not the idea itself.