breaking: palette generator and refactor term

lua/zenbones/palette.lua

@@ -1,18 +1,5 @@
+local util = require "zenbones.util"
 local lush = require "lush"
 local hsluv = lush.hsluv
 
-local palette = {
-	bg = hsluv(39, 12, 94), -- sand
-	fg = hsluv(230, 30, 22), -- stone
-	leaf = hsluv(112, 72, 42),
-	water = hsluv(236, 84, 40),
-	rose = hsluv(4, 70, 40),
-	wood = hsluv(26, 80, 40),
-	blossom = hsluv(318, 42, 42),
-	sky = hsluv(204, 80, 53),
-}
-
-palette.bg_bright = palette.bg.abs_li(3).sa(6)
-palette.bg_dim = palette.bg.abs_da(3).de(12)
-
-return palette
+return util.palette_extend({}, "zenbones")