patch 8.1.2279: computation of highlight attributes is too complicated Commit: https://github.com/vim/vim/commit/dbd4316806389e3c2240b48cc6c4d209cb1665fd Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 9 21:28:14 2019 +0100 patch 8.1.2279: computation of highlight attributes is too complicated Problem: Computation of highlight attributes is too complicated. Solution: Simplify the attribute computation and make it more consistent. (closes #5190) Fix that 'combine' set to zero doesn't work.