v0.2.0 16 colors, default colors, /dev/tty, bracketed paste, themed form controls

detect_env.go

@@ -0,0 +1,18 @@
+//go:build !wasm
+
+package terminal
+
+import "github.com/lixenwraith/terminal/internal/env"
+
+// DetectColorMode determines terminal color capability from environment:
+// 16 colors on text consoles, true color where announced, else 256. It
+// reports what the terminal can show; New also honours NO_COLOR.
+func DetectColorMode() ColorMode {
+	switch env.Colors() {
+	case 16:
+		return ColorMode16
+	case 1 << 24:
+		return ColorModeTrueColor
+	}
+	return ColorMode256
+}