Atom Vim Cursor Hack

style.less

atom-text-editor.vim-mode.normal-mode,
atom-text-editor.vim-mode.operator-pending-mode,
atom-text-editor.vim-mode.visual-mode
{
  &, // only keep this if you want to see the cursor on non-focused tabs
  &.is-focused {
    &::shadow, // shadow-DOM enabled
    &          // shadow-DOM disabled
    {
      /* cursor color */
      .cursor {
          background-color: #ffffff;
        // cursor styles
      }
      .blink-off .cursor {
          background-color: #222222;
          opacity: 0;
        // cursor style while blinking (if you so desire)
      }
      /* bracket matcher */
      .bracket-matcher {
          background-color: #ffffff;
          opacity: 0.6 !important;
          width: 0.63em !important;
      }
    }
  }
}