diff --git a/constants.hpp b/constants.hpp
index be4843e..52cb9b7 100644
--- a/constants.hpp
+++ b/constants.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <string>
+#include "color.hpp"
 
 constexpr const int TEXTURE_WIDTH=256;
 constexpr const int TEXTURE_HEIGHT=256;
@@ -15,6 +16,13 @@ constexpr const int FRAME_LIMIT=60;
 constexpr const int NUM_SPRITES=1;
 constexpr const int MAX_LOG_MESSAGES=17;
 
+constexpr const int GUECS_PADDING = 3;
+constexpr const int GUECS_BORDER_PX = 1;
+constexpr const int GUECS_FONT_SIZE = 30;
+const sf::Color GUECS_FILL_COLOR = ColorValue::DARK_MID;
+const sf::Color GUECS_BG_COLOR = ColorValue::MID;
+const sf::Color GUECS_BORDER_COLOR = ColorValue::MID;
+
 #ifdef NDEBUG
 constexpr const bool DEBUG_BUILD=false;
 #else
diff --git a/guecs.cpp b/guecs.cpp
index 575ac60..b21ef4c 100644
--- a/guecs.cpp
+++ b/guecs.cpp
@@ -1,5 +1,4 @@
 #include "guecs.hpp"
-#include "constants.hpp"
 
 namespace guecs {
   UI::UI() {
@@ -55,9 +54,14 @@ namespace guecs {
         auto sprite_texture = textures.get(sprite.name);
         sprite.texture = sprite_texture.texture;
         sprite.sprite = make_shared<sf::Sprite>(*sprite.texture);
-        sprite.sprite->setPosition({float(cell.x + 5), float(cell.y + 5)});
+        sprite.sprite->setPosition({
+            float(cell.x + GUECS_PADDING),
+            float(cell.y + GUECS_PADDING)});
+
         auto size = sprite.texture->getSize();
-        sprite.sprite->setScale({float(cell.w - 10) / size.x, float(cell.h - 10) / size.y});
+        sprite.sprite->setScale({
+            float(cell.w - GUECS_PADDING * 2) / size.x,
+            float(cell.h - GUECS_PADDING * 2) / size.y});
     });
   }
 
diff --git a/guecs.hpp b/guecs.hpp
index 1e90a0c..ef223e0 100644
--- a/guecs.hpp
+++ b/guecs.hpp
@@ -8,13 +8,14 @@
 #include "texture.hpp"
 #include <functional>
 #include "events.hpp"
+#include "constants.hpp"
 
 namespace guecs {
   using std::shared_ptr, std::make_shared;
 
   struct Label {
     std::string label;
-    unsigned int size = 30;
+    unsigned int size = GUECS_FONT_SIZE;
     shared_ptr<sf::Font> font = nullptr;
     shared_ptr<sf::Text> text = nullptr;
 
@@ -30,14 +31,14 @@ namespace guecs {
 
   struct Textual {
     std::string content;
-    unsigned int size = 30;
+    unsigned int size = GUECS_FONT_SIZE;
     shared_ptr<sf::Font> font = nullptr;
     shared_ptr<sf::Text> text = nullptr;
 
     void init(lel::Cell &cell, shared_ptr<sf::Font> font_ptr) {
       if(font == nullptr) font = font_ptr;
       if(text == nullptr) text = make_shared<sf::Text>(*font, content, size);
-      text->setPosition({float(cell.x + 6), float(cell.y + 6)});
+      text->setPosition({float(cell.x + GUECS_PADDING * 2), float(cell.y + GUECS_PADDING * 2)});
       text->setCharacterSize(size);
     }
 
@@ -61,12 +62,12 @@ namespace guecs {
     shared_ptr<sf::RectangleShape> shape = nullptr;
 
     void init(lel::Cell& cell) {
-      sf::Vector2f size{float(cell.w) - 6, float(cell.h) - 6};
+      sf::Vector2f size{float(cell.w) - GUECS_PADDING * 2, float(cell.h) - GUECS_PADDING * 2};
       if(shape == nullptr) shape = make_shared<sf::RectangleShape>(size);
-      shape->setPosition({float(cell.x + 3), float(cell.y + 3)});
-      shape->setFillColor(ColorValue::DARK_MID);
-      shape->setOutlineColor(ColorValue::MID);
-      shape->setOutlineThickness(1);
+      shape->setPosition({float(cell.x + GUECS_PADDING), float(cell.y + GUECS_PADDING)});
+      shape->setFillColor(GUECS_FILL_COLOR);
+      shape->setOutlineColor(GUECS_BORDER_COLOR);
+      shape->setOutlineThickness(GUECS_BORDER_PX);
     }
   };
 
@@ -104,7 +105,7 @@ namespace guecs {
       sf::Vector2f size{float(w), float(h)};
       if(shape == nullptr) shape = make_shared<sf::RectangleShape>(size);
       shape->setPosition({float(x), float(y)});
-      shape->setFillColor(ColorValue::MID);
+      shape->setFillColor(GUECS_BG_COLOR);
     }
   };