From ce798581d88c5be3508dea3b069bbd16c9da9aca Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Tue, 8 Sep 2026 08:18:57 +0000
Subject: [PATCH] Optimize canvas aura string formatting

Avoids allocating temporary strings per iteration by using `write!` instead of `format!`.

Co-authored-by: Tcode-Motion <188012755+Tcode-Motion@users.noreply.github.com>
---
 stdlib/src/canvas.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/stdlib/src/canvas.rs b/stdlib/src/canvas.rs
index d7dee547..644dd36a 100644
--- a/stdlib/src/canvas.rs
+++ b/stdlib/src/canvas.rs
@@ -1,6 +1,7 @@
 use crate::{StdFunction, StdlibModule, StdlibRegistry};
 use std::cell::RefCell;
 use std::collections::HashMap;
+use std::fmt::Write;
 use std::rc::Rc;
 use techscript_runtime::{
     context::RuntimeContext, error::RuntimeError, function::Callable, value::RuntimeValue,
@@ -132,10 +133,11 @@ fn dsl_to_svg(val: &RuntimeValue, is_dragon: bool) -> String {
                         for i in 0..count {
                             let r = 80 + i as i64 * (size / 2);
                             let opacity = 0.4 - (i as f32 * 0.08);
-                            svg.push_str(&format!(
+                            let _ = write!(
+                                svg,
                                 r#"<circle cx="250" cy="180" r="{}" fill="none" stroke="{}" stroke-width="{}" opacity="{}"/>"#,
                                 r, color, thickness, opacity
-                            ));
+                            );
                         }
                     }
                     "emblem" => {