:root {
  /* Board-theme contract. Board image/render geometry lives outside this file. */
  --vk-surface-board: #d5a55d;
  --vk-border-board-grid: rgba(45, 32, 18, 0.72);
  --vk-border-board-edge: rgb(56, 34, 12);

  --vk-stone-black-bg: #111111;
  --vk-stone-white-bg: var(--vk-palette-white);
  --vk-stone-border: rgba(0, 0, 0, 0.75);
  --vk-stone-selector-border: rgba(0, 0, 0, 0.18);
  --vk-switch-border: rgba(43, 37, 29, 0.22);
  --vk-focus-editor-frame: rgba(17, 24, 39, 0.72);
  --vk-board-mark-shadow: rgba(255, 255, 255, 0.5);
  --vk-board-mark-ghost-bg: var(--vk-surface-board);
}