Fix: show the splash image on Ghostty over SSH

CHANGELOG.md

@@ -7,6 +7,13 @@ and the project follows [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+### Fixed
+- **Ghostty over SSH now shows the splash image, not the ASCII fallback.** The image
+  detection recognised Ghostty only by `TERM_PROGRAM=ghostty`, which SSH and tmux
+  strip — so a dashboard run over SSH from Ghostty fell back to ASCII even though the
+  terminal can render images. It now also treats `TERM=xterm-ghostty` (always
+  forwarded) as Kitty-graphics-capable.
+
 ### Added
 - **Himinbjörg — one focus + scroll primitive for the TUI (`app/internal/tui/pane`).**
   A `Pane` (scroll, selection-that-follows-the-cursor, `/` filter, sort) and a `Group`

app/internal/tui/splash/splash.go

@@ -104,6 +104,19 @@ func resizeImage(img image.Image, w int) image.Image {
 
 func forceASCII() bool { return os.Getenv("HEIMDALL_ASCII") != "" }
 
+// kittyCapable reports whether the terminal speaks the Kitty graphics protocol.
+// rasterm v1.1.2 only recognises Ghostty via TERM_PROGRAM=ghostty, which is dropped
+// over SSH and tmux (and not exported by every Linux Ghostty build) — but TERM is
+// always forwarded, and Ghostty's terminfo sets TERM=xterm-ghostty. Ghostty speaks
+// Kitty graphics, so treat that TERM as capable too. Fixes the ASCII-splash fallback
+// when running over SSH from Ghostty.
+func kittyCapable() bool {
+	if strings.EqualFold(strings.TrimSpace(os.Getenv("TERM")), "xterm-ghostty") {
+		return true
+	}
+	return rasterm.IsKittyCapable()
+}
+
 // inlineImage renders LOGO_NO_BG.png with an inline-image protocol at a known
 // cell footprint, centred in width x height. ok=false if the terminal can't
 // display images. The logo already contains the wordmark + tagline, so nothing
@@ -143,7 +156,7 @@ func inlineImage(width, height int) (string, bool) {
 	buf.WriteString(strings.Repeat("\n", top)) // vertical centre
 	buf.WriteString(strings.Repeat(" ", left)) // horizontal centre
 	switch {
-	case rasterm.IsKittyCapable():
+	case kittyCapable():
 		if rasterm.KittyWriteImage(&buf, img, rasterm.KittyImgOpts{DstCols: uint32(cols), DstRows: uint32(rows)}) != nil {
 			return "", false
 		}

app/internal/tui/splash/splash_test.go

@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+// Copyright (C) 2026 Kinn Coelho Juliao <kinncj@gmail.com>
+
+package splash
+
+import "testing"
+
+// Ghostty over SSH forwards TERM but not TERM_PROGRAM, so rasterm alone reports the
+// terminal as image-incapable and the splash falls back to ASCII. kittyCapable must
+// still recognise it from TERM=xterm-ghostty.
+func TestKittyCapableDetectsGhosttyByTERM(t *testing.T) {
+	// Clear the identifiers rasterm keys off, to isolate the TERM fallback.
+	t.Setenv("TERM_PROGRAM", "")
+	t.Setenv("KITTY_WINDOW_ID", "")
+
+	t.Setenv("TERM", "xterm-ghostty")
+	if !kittyCapable() {
+		t.Error("TERM=xterm-ghostty (e.g. Ghostty over SSH) should be Kitty-capable")
+	}
+
+	// Case-insensitive / whitespace tolerant.
+	t.Setenv("TERM", "  XTERM-GHOSTTY ")
+	if !kittyCapable() {
+		t.Error("TERM match should tolerate case and surrounding whitespace")
+	}
+
+	// A plain terminal with none of the identifiers must not be treated as capable.
+	t.Setenv("TERM", "xterm-256color")
+	if kittyCapable() {
+		t.Error("xterm-256color with no image identifiers should not be Kitty-capable")
+	}
+}
+
+// The existing TERM_PROGRAM path (macOS Ghostty, local) must keep working.
+func TestKittyCapableKeepsTermProgramPath(t *testing.T) {
+	t.Setenv("KITTY_WINDOW_ID", "")
+	t.Setenv("TERM", "xterm-256color")
+	t.Setenv("TERM_PROGRAM", "ghostty")
+	if !kittyCapable() {
+		t.Error("TERM_PROGRAM=ghostty (local macOS Ghostty) should stay Kitty-capable")
+	}
+}