diff --git a/core/src/com/unciv/ui/components/extensions/Scene2dExtensions.kt b/core/src/com/unciv/ui/components/extensions/Scene2dExtensions.kt
index 4c154729bb..8e6d559563 100644
--- a/core/src/com/unciv/ui/components/extensions/Scene2dExtensions.kt
+++ b/core/src/com/unciv/ui/components/extensions/Scene2dExtensions.kt
@@ -91,14 +91,21 @@ fun colorFromHex(hexColor: Int): Color {
 
 /** Create a new [Color] instance from [r]/[g]/[b] given as Integers in the range 0..255 */
 fun colorFromRGB(r: Int, g: Int, b: Int) = Color(r / 255f, g / 255f, b / 255f, 1f)
+
 /** Create a new [Color] instance from r/g/b given as Integers in the range 0..255 in the form of a 3-element List [rgb] */
 fun colorFromRGB(rgb: List<Int>) = colorFromRGB(rgb[0], rgb[1], rgb[2])
+
 /** Linearly interpolates between this [Color] and [BLACK][ImageGetter.CHARCOAL] by [t] which is in the range [[0,1]].
  * The result is returned as a new instance. */
 fun Color.darken(t: Float): Color = Color(this).lerp(Color.BLACK, t)
-/** Linearly interpolates between this [Color] and [WHITE][Color.WHITE] by [t] which is in the range [[0,1]].
- * The result is returned as a new instance. */
-fun Color.brighten(t: Float): Color = Color(this).lerp(Color.WHITE, t)
+
+/** Linearly interpolates between this [Color] and [WHITE][Color.WHITE] by [t] which is in the range [[0,1]],
+ * preserving color ratio in RGB. The result is returned as a new instance. */
+fun Color.brighten(t: Float): Color = Color(this).let {
+    val lightness = maxOf(r, g, b)
+    val targetRatio = (lightness + t * (1 - lightness)) / lightness
+    return it.mul(targetRatio)
+}
 
 
 fun Actor.centerX(parent: Actor) { x = parent.width / 2 - width / 2 }
@@ -242,7 +249,7 @@ fun <T : Actor> Table.addCell(actor: T): Table {
     return this
 }
 
-/** Shortcut for [Cell].[pad][com.badlogic.gdx.scenes.scene2d.ui.Cell.pad] with top=bottom and left=right */
+/** Shortcut for [Cell].[pad][Cell.pad] with top=bottom and left=right */
 fun <T : Actor> Cell<T>.pad(vertical: Float, horizontal: Float): Cell<T> {
     return pad(vertical, horizontal, vertical, horizontal)
 }