From fb35ddebb9915f6bda82e4050943ee5de1ba0360 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 18 Feb 2026 08:22:07 -0600
Subject: [PATCH] [display] Make COLOR_OFF and COLOR_ON inline constexpr
 (#14044)

---
 esphome/components/display/display.cpp | 3 +--
 esphome/components/display/display.h   | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/esphome/components/display/display.cpp b/esphome/components/display/display.cpp
index ebc3c0a9f6d..53a087803c7 100644
--- a/esphome/components/display/display.cpp
+++ b/esphome/components/display/display.cpp
@@ -9,8 +9,7 @@ namespace esphome {
 namespace display {
 static const char *const TAG = "display";
 
-const Color COLOR_OFF(0, 0, 0, 0);
-const Color COLOR_ON(255, 255, 255, 255);
+// COLOR_OFF and COLOR_ON are now inline constexpr in display.h
 
 void Display::fill(Color color) { this->filled_rectangle(0, 0, this->get_width(), this->get_height(), color); }
 void Display::clear() { this->fill(COLOR_OFF); }
diff --git a/esphome/components/display/display.h b/esphome/components/display/display.h
index 47d40915aa7..e40f6ec963b 100644
--- a/esphome/components/display/display.h
+++ b/esphome/components/display/display.h
@@ -298,9 +298,9 @@ using display_writer_t = DisplayWriter<Display>;
   }
 
 /// Turn the pixel OFF.
-extern const Color COLOR_OFF;
+inline constexpr Color COLOR_OFF(0, 0, 0, 0);
 /// Turn the pixel ON.
-extern const Color COLOR_ON;
+inline constexpr Color COLOR_ON(255, 255, 255, 255);
 
 class BaseImage {
  public: