add everforest theme (#219)

lua/highlights.lua

@@ -69,6 +69,7 @@ fg_bg("DiffModified", nord_blue, "none")
 -- NvimTree
 fg("NvimTreeFolderIcon", blue)
 fg("NvimTreeFolderName", blue)
+fg("NvimTreeGitDirty", red)
 fg("NvimTreeOpenedFolderName", blue)
 fg("NvimTreeEmptyFolderName", blue)
 fg("NvimTreeIndentMarker", one_bg2)

lua/themes/everforest.lua

@@ -0,0 +1,33 @@
+local colors = {
+    white = "#fff9e8",
+    darker_black = "#252d33",
+    black = "#2b3339", --  nvim bg
+    black2 = "#323a40",
+    one_bg = "#333b41",
+    one_bg2 = "#363e44",
+    one_bg3 = "#3a4248",
+    grey = "#4a5258",
+    grey_fg = "#50585e",
+    grey_fg2 = "#545c62",
+    light_grey = "#586066",
+    red = "#e67e80",
+    baby_pink = "#ce8196",
+    pink = "#ff75a0",
+    line = "#3a4248", -- for lines like vertsplit
+    green = "#83c092",
+    vibrant_green = "#a7c080",
+    nord_blue = "#78b4ac",
+    blue = "#7fbbb3",
+    yellow = "#dbbc7f",
+    sun = "#d1b171",
+    purple = "#b4bbc8",
+    dark_purple = "#d699b6",
+    teal = "#69a59d",
+    orange = "#e69875",
+    cyan = "#95d1c9",
+    statusline_bg = "#2e363c",
+    lightbg = "#3d454b",
+    lightbg2 = "#333b41"
+}
+
+return colors