Github Flat Theme for Stylish

gistfile1.css

// Theme for Github. Bye bye gradients! (this was made from scratch)

.header {
  display: none !important;
}

.header,
.select-menu-header,
#readme span.name,
.file .meta,
.section-head,
.boxed-group > h3 {
  background-color: #f7f7f7 !important;
}

.header,
.select-menu-header,
#readme span.name,
.file .meta,
.gobutton,
.box-header,
.dashboard-tabs,
.section-head,
.boxed-group > h3,
.button,
.js-events-pagination {
  background-image: none !important;
}

.dashboard-tabs a.selected,
.dashboard-tabs a.selected:hover,
.dashboard-tabs a:hover {
   background-image: none !important;
}

.minibutton {
   background-image: none !important;
}

.input,.minibutton {
   box-shadow: none !important;
}