diff --git a/examples/simple_stdio.rs b/examples/simple_stdio.rs
index 1589851..e29136b 100644
--- a/examples/simple_stdio.rs
+++ b/examples/simple_stdio.rs
@@ -26,6 +26,12 @@ fn main() {
                 .layout(TextLayout::default())
                 .append(append::Stdout),
         )
+        .dispatch(
+            Dispatch::new()
+                .filter(LevelFilter::Trace)
+                .layout(TextLayout::default().no_color())
+                .append(append::Stderr),
+        )
         .apply()
         .unwrap();
 
diff --git a/src/append/fastrace.rs b/src/append/fastrace.rs
index 617a510..f252464 100644
--- a/src/append/fastrace.rs
+++ b/src/append/fastrace.rs
@@ -12,11 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use std::borrow::Cow;
+
 use jiff::Zoned;
 use log::Record;
 
 use crate::append::Append;
-use crate::layout::KvDisplay;
+use crate::layout::collect_kvs;
 
 /// An appender that adds log records to fastrace as an event associated to the current span.
 #[derive(Default, Debug, Clone)]
@@ -24,14 +26,19 @@ pub struct FastraceEvent;
 
 impl Append for FastraceEvent {
     fn append(&self, record: &Record) -> anyhow::Result<()> {
-        let message = format!(
-            "{} {:>5} {}{}",
-            Zoned::now(),
-            record.level(),
-            record.args(),
-            KvDisplay::new(record.key_values()),
-        );
-        fastrace::Event::add_to_local_parent(message, || []);
+        let message = format!("{}", record.args());
+        fastrace::Event::add_to_local_parent(message, || {
+            [
+                (Cow::from("level"), Cow::from(record.level().as_str())),
+                (Cow::from("timestamp"), Cow::from(Zoned::now().to_string())),
+            ]
+            .into_iter()
+            .chain(
+                collect_kvs(record.key_values())
+                    .into_iter()
+                    .map(|(k, v)| (Cow::from(k), Cow::from(v))),
+            )
+        });
         Ok(())
     }
 
diff --git a/src/layout/kv.rs b/src/layout/kv.rs
index a619f34..8f9685b 100644
--- a/src/layout/kv.rs
+++ b/src/layout/kv.rs
@@ -45,3 +45,25 @@ impl<'a, 'kvs> log::kv::Visitor<'kvs> for KvWriter<'a, 'kvs> {
         Ok(())
     }
 }
+
+/// A helper to collect log's key-value pairs.
+pub fn collect_kvs(kv: &dyn log::kv::Source) -> Vec<(String, String)> {
+    let mut collector = KvCollector { kv: Vec::new() };
+    kv.visit(&mut collector).ok();
+    collector.kv
+}
+
+struct KvCollector {
+    kv: Vec<(String, String)>,
+}
+
+impl<'kvs> log::kv::Visitor<'kvs> for KvCollector {
+    fn visit_pair(
+        &mut self,
+        key: log::kv::Key<'kvs>,
+        value: log::kv::Value<'kvs>,
+    ) -> Result<(), log::kv::Error> {
+        self.kv.push((key.to_string(), value.to_string()));
+        Ok(())
+    }
+}
diff --git a/src/layout/mod.rs b/src/layout/mod.rs
index de9d092..5ac9a21 100644
--- a/src/layout/mod.rs
+++ b/src/layout/mod.rs
@@ -18,6 +18,7 @@ pub use custom::CustomLayout;
 pub use identical::IdenticalLayout;
 #[cfg(feature = "json")]
 pub use json::JsonLayout;
+pub use kv::collect_kvs;
 pub use kv::KvDisplay;
 pub use text::LevelColor;
 pub use text::TextLayout;
diff --git a/src/layout/text.rs b/src/layout/text.rs
index e06d683..9b5f1da 100644
--- a/src/layout/text.rs
+++ b/src/layout/text.rs
@@ -37,7 +37,7 @@ use crate::layout::Layout;
 /// ```
 ///
 /// By default, log levels are colored. You can turn on the `no-color` feature flag to disable this
-/// feature.
+/// feature. Instead, you can also set the `no_color` field to `true` to disable coloring.
 ///
 /// You can also customize the color of each log level by setting the `colors` field with a
 /// [`LevelColor`] instance.
@@ -47,9 +47,66 @@ use crate::layout::Layout;
 #[derive(Default, Debug, Clone)]
 pub struct TextLayout {
     pub colors: LevelColor,
+    pub no_color: bool,
     pub tz: Option<TimeZone>,
 }
 
+impl TextLayout {
+    /// Turn off coloring of log levels.
+    pub fn no_color(mut self) -> Self {
+        self.no_color = true;
+        self
+    }
+
+    /// Set the timezone of the timestamp; default to the system timezone.
+    pub fn timezone(mut self, tz: TimeZone) -> Self {
+        self.tz = Some(tz);
+        self
+    }
+
+    /// Customize the color of each log level; no effect if `no_color` is set to `true`,
+    /// or the `no-color` feature flag is enabled.
+    pub fn colors(mut self, colors: LevelColor) -> Self {
+        self.colors = colors;
+        self
+    }
+
+    /// Customize the color of the error log level; no effect if `no_color` is set to `true`,
+    /// or the `no-color` feature flag is enabled. Default to red.
+    pub fn error_color(mut self, color: Color) -> Self {
+        self.colors.error = color;
+        self
+    }
+
+    /// Customize the color of the warn log level; no effect if `no_color` is set to `true`,
+    /// or the `no-color` feature flag is enabled. Default to yellow.
+    pub fn warn_color(mut self, color: Color) -> Self {
+        self.colors.warn = color;
+        self
+    }
+
+    /// Customize the color of the info log level; no effect if `no_color` is set to `true`,
+    /// or the `no-color` feature flag is enabled. Default to green.
+    pub fn info_color(mut self, color: Color) -> Self {
+        self.colors.info = color;
+        self
+    }
+
+    /// Customize the color of the debug log level; no effect if `no_color` is set to `true`,
+    /// or the `no-color` feature flag is enabled. Default to blue.
+    pub fn debug_color(mut self, color: Color) -> Self {
+        self.colors.debug = color;
+        self
+    }
+
+    /// Customize the color of the trace log level; no effect if `no_color` is set to `true`,
+    /// or the `no-color` feature flag is enabled. Default to magenta.
+    pub fn trace_color(mut self, color: Color) -> Self {
+        self.colors.trace = color;
+        self
+    }
+}
+
 /// Customize the color of each log level.
 #[derive(Debug, Clone)]
 pub struct LevelColor {
@@ -77,20 +134,23 @@ impl TextLayout {
     where
         F: Fn(Arguments) -> anyhow::Result<()>,
     {
-        let color = match record.level() {
-            Level::Error => self.colors.error,
-            Level::Warn => self.colors.warn,
-            Level::Info => self.colors.info,
-            Level::Debug => self.colors.debug,
-            Level::Trace => self.colors.trace,
-        };
-
         let time = match self.tz.clone() {
             Some(tz) => Zoned::now().with_time_zone(tz),
             None => Zoned::now(),
         }
         .strftime("%Y-%m-%dT%H:%M:%S.%6f%:z");
-        let level = ColoredString::from(record.level().to_string()).color(color);
+        let level = if self.no_color {
+            ColoredString::from(record.level().to_string())
+        } else {
+            let color = match record.level() {
+                Level::Error => self.colors.error,
+                Level::Warn => self.colors.warn,
+                Level::Info => self.colors.info,
+                Level::Debug => self.colors.debug,
+                Level::Trace => self.colors.trace,
+            };
+            ColoredString::from(record.level().to_string()).color(color)
+        };
         let module = record.module_path().unwrap_or_default();
         let file = record.file().unwrap_or_default();
         let line = record.line().unwrap_or_default();