windowsautodarkmode.vim

function s:AppsUseLightTheme()
	silent let l:output = system('reg query HKCU\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize /v AppsUseLightTheme')
	silent let l:match = matchlist(l:output, '\s\+AppsUseLightTheme\s\+REG_DWORD\s\+\(\S\+\)')
	return str2nr(l:match[1], 16)
endfunction

function s:SyncBackground()
	if s:AppsUseLightTheme()
		set background=light
	else
		set background=dark
	endif
endfunction

" FocusGained would be much nicer UX but it fires constantly for some reason
autocmd myvimrc GUIEnter * call s:SyncBackground()
autocmd myvimrc FocusLost * call s:SyncBackground()