Board workspace with real panels, tabs and theme; Nerd Font declared for all three machines

tui/theme.go

@@ -0,0 +1,82 @@
+package main
+
+// One palette, two variants, named by role.
+//
+// Catppuccin, because it is the scheme people already run in this terminal and
+// because its two variants are designed together: the same roles keep the same
+// meaning in light and dark. Panels ask for a role and never for a colour, so a
+// light terminal needs no second design.
+
+import (
+	"os"
+	"strings"
+)
+
+type palette struct {
+	Base      string
+	Surface   string
+	Overlay   string
+	Text      string
+	Muted     string
+	Accent    string
+	Info      string
+	Success   string
+	Warning   string
+	Error     string
+	Mauve     string
+	Selection string
+}
+
+var mocha = palette{
+	Base:      "#1e1e2e",
+	Surface:   "#313244",
+	Overlay:   "#6c7086",
+	Text:      "#cdd6f4",
+	Muted:     "#a6adc8",
+	Accent:    "#89b4fa",
+	Info:      "#94e2d5",
+	Success:   "#a6e3a1",
+	Warning:   "#f9e2af",
+	Error:     "#f38ba8",
+	Mauve:     "#cba6f7",
+	Selection: "#45475a",
+}
+
+var latte = palette{
+	Base:      "#eff1f5",
+	Surface:   "#ccd0da",
+	Overlay:   "#8c8fa1",
+	Text:      "#4c4f69",
+	Muted:     "#6c6f85",
+	Accent:    "#1e66f5",
+	Info:      "#179299",
+	Success:   "#40a02b",
+	Warning:   "#df8e1d",
+	Error:     "#d20f39",
+	Mauve:     "#8839ef",
+	Selection: "#bcc0cc",
+}
+
+// active is the palette this run draws with. It is chosen once, at startup, so
+// nothing downstream has to think about it.
+var active = mocha
+
+func choosePalette(force string) {
+	switch strings.ToLower(force) {
+	case "light":
+		active = latte
+	case "dark":
+		active = mocha
+	default:
+		// COLORFGBG is what many terminals export: "foreground;background".
+		if v := os.Getenv("COLORFGBG"); v != "" {
+			parts := strings.Split(v, ";")
+			bg := parts[len(parts)-1]
+			// A light background is one of the high numbers in the 16-colour
+			// range; anything above 6 is light in practice.
+			if bg == "15" || bg == "7" {
+				active = latte
+			}
+		}
+	}
+}