feat: introduce theme management and performance improvements (#7)

internal/theme/solarized.go

@@ -0,0 +1,45 @@
+package theme
+
+// solarized dark theme
+// https://ethanschoonover.com/solarized/
+var paletteSolarizedDark = Palette{
+	Name: "solarized-dark",
+
+	Fg:       "#839496", // base0
+	FgMuted:  "#93a1a1", // base1
+	FgSubtle: "#586e75", // base01
+	Bg:       "#002b36", // base03
+	BgMuted:  "#073642", // base02
+	Border:   "#073642", // base02
+
+	Red:     "#dc322f",
+	Green:   "#859900",
+	Yellow:  "#b58900",
+	Blue:    "#268bd2",
+	Magenta: "#d33682",
+	Cyan:    "#2aa198",
+	Orange:  "#cb4b16",
+	Gray:    "#657b83", // base00
+}
+
+// solarized light theme
+var paletteSolarizedLight = Palette{
+	Name: "solarized-light",
+
+	Fg:       "#657b83", // base00
+	FgMuted:  "#586e75", // base01
+	FgSubtle: "#93a1a1", // base1
+	Bg:       "#fdf6e3", // base3
+	BgMuted:  "#eee8d5", // base2
+	Border:   "#eee8d5", // base2
+
+	Red:     "#dc322f",
+	Green:   "#859900",
+	Yellow:  "#b58900",
+	Blue:    "#268bd2",
+	Magenta: "#d33682",
+	Cyan:    "#2aa198",
+	Orange:  "#cb4b16",
+	Gray:    "#839496", // base0
+}
+