esengine/packages/editor-app/src/styles/FileTree.css

.file-tree {
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  background: #1e1e1e;
  color: #cccccc;
  user-select: none;
}

.file-tree::-webkit-scrollbar {
  width: 10px;
}

.file-tree::-webkit-scrollbar-track {
  background: #1e1e1e;
}

.file-tree::-webkit-scrollbar-thumb {
  background: #424242;
  border-radius: 5px;
}

.file-tree::-webkit-scrollbar-thumb:hover {
  background: #4e4e4e;
}

.file-tree.loading,
.file-tree.empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #858585;
  font-size: var(--font-size-sm);
}

.tree-node {
  display: flex;
  align-items: center;
  padding: 4px 8px;
  cursor: pointer;
  font-size: var(--font-size-base);
  white-space: nowrap;
  transition: background 0.1s ease;
}

.tree-node:hover {
  background: #2a2d2e;
}

.tree-node.selected {
  background: #37373d;
}

.tree-arrow {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 4px;
  font-size: var(--font-size-xs);
  color: #cccccc;
}

.tree-icon {
  margin-right: 6px;
  font-size: var(--font-size-md);
}

.tree-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tree-children {
  /* Children are indented via inline style */
}