migrated to lazy.nvim, cleanup and fixes

lua/plugins/50_ui.lua

@@ -0,0 +1,53 @@
+return {
+	--
+	-- Theme
+	--
+	{
+		'navarasu/onedark.nvim',
+		lazy = false,
+		config = function()
+			local ct = require('conftool')
+			ct.set({'background', 'light'})
+			vim.cmd [[colo onedark]]
+		end,
+		keys = {
+			{
+				'<Leader>c',
+				function()
+					if vim.o.background == 'light' then
+						vim.o.background = 'dark'
+					else
+						vim.o.background = 'light'
+						-- vim.api.nvim_set_hl(0, 'ColorColumn', {bg = '#c0bfbc'})
+						vim.cmd('redraw')
+						vim.cmd('redraw')
+					end
+				end,
+				desc = 'toggle color themes'
+			},
+		},
+
+	},
+
+	--
+	-- Indentation
+	--
+	{
+		'nathanaelkane/vim-indent-guides',
+		lazy = false,
+		setup = function()
+			vim.g.indent_guides_guide_size = 1
+			vim.g.indent_guides_tab_guides = 0
+			vim.g.indent_guides_start_level = 2
+			vim.g.indent_guides_enable_on_vim_startup = 1
+		end
+	},
+	--
+	-- Delimiters
+	--
+	{
+		'hiphish/rainbow-delimiters.nvim',
+		lazy = false,
+	}
+
+}