gtk2/gtk/inspector/inspector.css

/* some style for the inspector */

.list header {
  background: white;
  border: 1px solid lightgray;
}

.list header button {
  background: none;
}

.list header button.dnd {
  background: gray;
}

.list header>* {
  padding: 2px;
  font-weight: bold;
}

.list header sort_indicator {
  min-width: 16px;
}

.list header>*:not(:last-child) {
  border-right: 1px solid lightgray;
}

.list .cell {
  font-size: smaller;
  padding: 0 2px;
  min-height: 24px;
}

.list .cell entry,
.list .cell spinbutton,
.list .cell button,
.list .cell dropdown
.list .cell combobox {
  min-height: 24px;
  min-width: 0;
}

.list .cell entry,
.list .cell button,
.list .cell dropdown
.list .cell combobox {
  padding: 0 4px;
}

stacksidebar.object-details {
  border-top: 1px solid lightgray;
}

picture.dark {
  background: gray;
}

picture.light {
  background: white;
}

#css-padding-color {
  background-color: rgba(70%, 0%, 70%, 0.6);
  min-width: 10px;
  min-height: 10px;
}

#css-border-color {
  background-color: rgba(0, 0, 0, 0.0);
  min-width: 10px;
  min-height: 10px;
}

#css-margin-color {
  background-color: rgba(70%, 70%, 0%, 0.6);
  min-width: 10px;
  min-height: 10px;
}

#widget-margin-color {
  background-color: rgba(70%, 0%, 0%, 0.6);
  min-width: 10px;
  min-height: 10px;
}