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-rw-r--r--scripts/gui-common/color.js4
1 files changed, 4 insertions, 0 deletions
diff --git a/scripts/gui-common/color.js b/scripts/gui-common/color.js
index eae3971..489096a 100644
--- a/scripts/gui-common/color.js
+++ b/scripts/gui-common/color.js
@@ -1,3 +1,5 @@
+'use strict';
+
class Color
{
/** @type {Array<number>} */
@@ -227,6 +229,8 @@ const BLUE = new Color(0, 0, 1, 1);
const MAGENTA = new Color(1, 0, 1, 1);
const WHITE = new Color(1, 1, 1, 1);
const BLACK = new Color(0, 0, 0, 1);
+const TRANSPARENT_WHITE = new Color(1,1,1,0);
+const TRANSPARENT_BLACK = new Color(0,0,0,0);
const PI_THIRDS = Math.PI / 3;
const TWO_PI = Math.PI * 2;