Add 'new_ui/' from commit '51822f34de2431ff5b2b7f8c699c99280ce22bb2'

git-subtree-dir: new_ui
git-subtree-mainline: e6e1df44bb9351bdcf98c5ac215d743c11db65a6
git-subtree-split: 51822f34de2431ff5b2b7f8c699c99280ce22bb2