1 files changed, 43 insertions, 7 deletions
diff --git a/src/image.zig b/src/image.zig
index a9f0e227..50e9649c 100644
--- a/src/image.zig
+++ b/src/image.zig
@@ -4,20 +4,56 @@
 //! a pixel attachment the shell transmits/places (TTY: Kitty; SDL: GPU texture).
 const std = @import("std");
 const zstbi = @import("zstbi");
-const ghostty_vt = @import("ghostty-vt");
+/// The 16-colour ANSI table below is the only thing this file ever wanted from
+/// the emulator, and a build without one still renders images — see
+/// `pardes.terminal_panes`.
+const terminal_panes = @import("pardes.zig").terminal_panes;
+const ghostty_vt = if (terminal_panes) @import("ghostty-vt") else struct {};
 const pdf_enabled = @import("pardes_config").mupdf;
 pub const petscii = @import("petscii.zig");
 
 /// the terminal's own 16 ANSI colors — what the `terminal` palette mode
 /// scores against; cells then paint as indexed colors so the real terminal
 /// resolves the RGB
-pub fn ansiPalette() [16][3]u8 {
-    var p: [16][3]u8 = undefined;
-    for (0..16) |i| {
+///
+/// These are GHOSTTY's sixteen, transcribed, because on a platform that has an
+/// emulator the scoring used to read them straight out of it and a build
+/// without one has to score against the identical table or render different
+/// glyph art for the same photo. Note they are the base16 Tomorrow Night set,
+/// NOT the xterm defaults: zig-pkg/ghostty-1.3.2-dev-5UdBCzeJ.../src/terminal/
+/// color.zig:389-405 (`Name.default`), which color.zig:8-15 copies into the
+/// first sixteen entries of `color.default`. The comptime block below makes
+/// the emulator prove that, so the transcription cannot rot in silence.
+const ansi_default = [16][3]u8{
+    .{ 0x1D, 0x1F, 0x21 }, // black
+    .{ 0xCC, 0x66, 0x66 }, // red
+    .{ 0xB5, 0xBD, 0x68 }, // green
+    .{ 0xF0, 0xC6, 0x74 }, // yellow
+    .{ 0x81, 0xA2, 0xBE }, // blue
+    .{ 0xB2, 0x94, 0xBB }, // magenta
+    .{ 0x8A, 0xBE, 0xB7 }, // cyan
+    .{ 0xC5, 0xC8, 0xC6 }, // white
+    .{ 0x66, 0x66, 0x66 }, // bright black
+    .{ 0xD5, 0x4E, 0x53 }, // bright red
+    .{ 0xB9, 0xCA, 0x4A }, // bright green
+    .{ 0xE7, 0xC5, 0x47 }, // bright yellow
+    .{ 0x7A, 0xA6, 0xDA }, // bright blue
+    .{ 0xC3, 0x97, 0xD8 }, // bright magenta
+    .{ 0x70, 0xC0, 0xB1 }, // bright cyan
+    .{ 0xEA, 0xEA, 0xEA }, // bright white
+};
+
+comptime {
+    if (terminal_panes) for (ansi_default, 0..) |rgb, i| {
         const c = ghostty_vt.color.default[i];
-        p[i] = .{ c.r, c.g, c.b };
-    }
-    return p;
+        if (rgb[0] != c.r or rgb[1] != c.g or rgb[2] != c.b) @compileError(
+            "src/image.zig ansi_default has drifted from ghostty's color.default",
+        );
+    };
+}
+
+pub fn ansiPalette() [16][3]u8 {
+    return ansi_default;
 }
 
 /// cap the longest side before keeping/transmitting: a pane is at most a