diff --git a/yazi-adapter/src/adapter.rs b/yazi-adapter/src/adapter.rs
index 01e858d2..3bce7cff 100644
--- a/yazi-adapter/src/adapter.rs
+++ b/yazi-adapter/src/adapter.rs
@@ -81,9 +81,9 @@ impl Adapter {
 
 impl Adapter {
 	pub fn matches(emulator: Emulator) -> Self {
-		if matches!(emulator.kind.left(), Some(Brand::Microsoft)) {
+		if emulator.kind.is_left_and(|&b| b == Brand::Microsoft) {
 			return Self::Sixel;
-		} else if WSL.get() && matches!(emulator.kind.left(), Some(Brand::WezTerm)) {
+		} else if WSL.get() && emulator.kind.is_left_and(|&b| b == Brand::WezTerm) {
 			return Self::KgpOld;
 		}
 
diff --git a/yazi-shared/src/either.rs b/yazi-shared/src/either.rs
index 76d57bb5..dfa6e6e9 100644
--- a/yazi-shared/src/either.rs
+++ b/yazi-shared/src/either.rs
@@ -33,10 +33,6 @@ impl<L, R> Either<L, R> {
 		}
 	}
 
-	pub fn is_left(&self) -> bool { matches!(self, Either::Left(_)) }
-
-	pub fn is_right(&self) -> bool { matches!(self, Either::Right(_)) }
-
 	pub fn is_left_and<F: FnOnce(&L) -> bool>(&self, f: F) -> bool {
 		self.left().map(f).unwrap_or(false)
 	}