patch 8.1.1445: popup window border highlight not implemented yet commit https://github.com/vim/vim/commit/790498b509443f96f39431d2bc87b777efbe250f Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 1 22:15:29 2019 +0200 patch 8.1.1445: popup window border highlight not implemented yet Problem: Popup window border highlight not implemented yet. Solution: Implement the "borderhighlight" option.

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