From ebb6d74d9f27b328189f3e71bca24de119771158 Mon Sep 17 00:00:00 2001
From: Manolis Papadeas <35376950+OverloadedOrama@users.noreply.github.com>
Date: Mon, 2 Nov 2020 20:07:31 +0200
Subject: [PATCH] Using the lighten/darken on pixels with an alpha value of 0
 no longer has an effect on them.

---
 CHANGELOG.md               | 1 +
 src/Tools/LightenDarken.gd | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index be5199d..1f7210e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,7 @@ PinyaColada, Rémi Verschelde (akien-mga), dasimonde
 - Fixed "Export" option in the File menu not working properly and not remembering the directory path and file name when switching between projects (tabs).
 - Fixed Chinese and Korean characters not displaying properly in the Splash dialog and the About dialog.
 - Fixed crash when importing an incorrectly formatted GIMP Color Palette file. ([#363](https://github.com/Orama-Interactive/Pixelorama/issues/363))
+- Using the lighten/darken on pixels with an alpha value of 0 no longer has an effect on them.
 <br><br>
 
 ## [v0.8.1] - 2020-10-14
diff --git a/src/Tools/LightenDarken.gd b/src/Tools/LightenDarken.gd
index 3f54b48..262dc7f 100644
--- a/src/Tools/LightenDarken.gd
+++ b/src/Tools/LightenDarken.gd
@@ -26,13 +26,13 @@ class LightenDarkenOp extends Drawer.ColorOp:
 
 	func process(_src: Color, dst: Color) -> Color:
 		changed = true
+		if dst.a == 0:
+			return dst
 		if shading_mode == ShadingMode.SIMPLE:
 			if strength > 0:
 				dst = dst.lightened(strength)
-#				dst.h += strength/8
 			elif strength < 0:
 				dst = dst.darkened(-strength)
-#				dst.h += strength/8
 		else:
 			if lighten_or_darken == LightenDarken.LIGHTEN:
 				dst.h += (hue_amount / 359)