Theme to allow left side tabs in Cloud9 IDEA

c9.theme.left-side-tabs.css

.c9terminalcontainer.dark,
.ace_dark,
.ace_editor,
.codeEditorHolder,
.ace-gutter {
  background-color: #263238;
}

body,
.ace_tree_cells {
  font-size: 11px;
}

.codeditorHolder:not(.console) .editor_tab .session_btn {
  max-width: 155px;
  min-width: 155px;
  max-height: 25px;
  overflow: visible;
  width: auto;
  padding: 0;
  margin: 0;
}

.codeditorHolder:not(.console) .editor_tab .session_btn.focus::after {}

.codeditorHolder:not(.console) .editor_tab .session_btn strong {
  right: 4px;
}

.codeditorHolder:not(.console) .editor_tab .btnsesssioncontainer {
  height: 100%;
  width: 156px;
  clip: auto;
  overflow-y: hidden;
}

.codeditorHolder:not(.console) .editor_tab .btnsesssioncontainer .inside::-webkit-scrollbar {
  display: none;
}

.codeditorHolder:not(.console) .editor_tab .btnsesssioncontainer .inside {
  justify-content: flex-start;
  flex-direction: column;
  overflow-x: visible;
  overflow-y: overlay;
  margin: -24px 0 0 0;
  padding: 48px 2px 0 0;
  height: 96%;
}

.codeditorHolder:not(.console) .session_btn .tab_middle:before,
.codeditorHolder:not(.console) .session_btn .tab_middle:after,
.codeditorHolder:not(.console) .session_btn .tab_shadow:before,
.codeditorHolder:not(.console) .session_btn .tab_shadow:after {
  content: none;
}

.codeditorHolder:not(.console) .editor_tab .session_page {
  top: 0;
  left: 156px;
}

.codeditorHolder:not(.console) .plus_tab_button {
  position: absolute;
  top: 5px;
  right: 7px;
}

.codeditorHolder:not(.console) .session_btn .sessiontab_title {
  padding: 0 12px;
}

.codeditorHolder:not(.console) .session_btn:not(.focus) .sessiontab_title:after {
  content: '';
  width: 100%;
  height: 100%;
  position: absolute;
  right: 0;
  top: 0;
  left: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 70%, #252525 90%, #252525 100%);
}

.codeditorHolder:not(.console) .session_btn.curbtn .sessiontab_title:after {
  width: 100%;
  height: 100%;
  position: absolute;
  right: 0;
  left: 0;
  bottom: 0;
  top: 0;
  background: linear-gradient(90deg, transparent 60%, #333 95%, #333 98%, #3BC 98%, #3BC 100%);
}

.codeditorHolder:not(.console) .session_btn .tab_shadow {
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}

.codeditorHolder:not(.console) .session_btn.curbtn .tab_middle {
  height: 25px;
  background-color: #333;
}

.codeditorHolder:not(.console) .session_btn.lastbtn {
  border-bottom: .5px solid #333;
}

.codeditorHolder:not(.console) .session_btn.firstbtn {
  margin-top: 4px;
  padding-top: 0px;
  border-top: .5px solid #333;
}

.codeditorHolder:not(.console) .session_btn .tab_middle,
.codeditorHolder:not(.console) .session_btn .tab_shadow {
  background-image: none;
  background-color: #252525;
  height: 22px;
}

.output .c9terminal .c9terminalcontainer.dark {
  background-color: #263238;
}