Add EditorConfig and standardize code formatting

Adds an EditorConfig file to maintain consistent coding styles across editors. Reformats code with consistent indentation using spaces instead of tabs. Makes minor color palette adjustments.

lua/kanso/colors.lua

@@ -21,34 +21,23 @@ local palette = {
     autumnYellow = "#DCA561",
 
     -- Diag
-    samuraiRed = "#E82424",
-    roninYellow = "#FF9E3B",
+    samuraiRed = "#C34043",
+    roninYellow = "#DCA561",
     zenAqua1 = "#6A9589",
     inkBlue = "#658594",
 
     -- Fg and Comments
     oldWhite = "#C5C9C7",
     fujiWhite = "#f2f1ef",
-    fujiGray = "#727169",
 
-    oniViolet = "#957FB8",
-    oniViolet2 = "#b8b4d0",
-    crystalBlue = "#7E9CD8",
     springViolet1 = "#938AA9",
-    springViolet2 = "#9CABCA",
     springBlue = "#7FB4CA",
-    lightBlue = "#A3D4D5",
     zenAqua2 = "#7AA89F",
 
     springGreen = "#98BB6C",
-    boatYellow1 = "#938056",
-    boatYellow2 = "#C0A36E",
     carpYellow = "#E6C384",
 
-    sakuraPink = "#D27E99",
     zenRed = "#E46876",
-    peachRed = "#FF5D62",
-    surimiOrange = "#FFA066",
     katanaGray = "#717C7C",
 
     inkBlack0 = "#14171d",
@@ -63,7 +52,7 @@ local palette = {
     inkOrange = "#b6927b",
     inkOrange2 = "#b98d7b",
     inkGray = "#A4A7A4",
-    inkGray1 = "#9E9B93",
+    inkGray1 = "#909398",
     inkGray2 = "#75797f",
     inkGray3 = "#5C6066",
     inkBlue2 = "#8ba4b0",
@@ -133,7 +122,8 @@ function M.setup(opts)
 
     if not theme then
         error(
-        "kanso.colors.setup(): Unable to infer `theme`. Either specify a theme or call this function after ':colorscheme kanso'")
+            "kanso.colors.setup(): Unable to infer `theme`. Either specify a theme or call this function after ':colorscheme kanso'"
+        )
     end
 
     -- Add to and/or override palette_colors
@@ -143,8 +133,8 @@ function M.setup(opts)
     local theme_colors = require("kanso.themes")[theme](updated_palette_colors)
 
     -- Add to and/or override theme_colors
-    local theme_overrides = vim.tbl_deep_extend("force", override_colors.theme["all"] or {},
-        override_colors.theme[theme] or {})
+    local theme_overrides =
+        vim.tbl_deep_extend("force", override_colors.theme["all"] or {}, override_colors.theme[theme] or {})
     local updated_theme_colors = vim.tbl_deep_extend("force", theme_colors, theme_overrides)
     -- return palette_colors AND theme_colors