Creative: New textures for less distortion

Use 128px textures with a slight blur to reduce distortion caused
by formspec texture scaling.
Cross is shifted slightly up and left to compensate for formspec
button image shift.

mods/creative/README.txt

@@ -9,14 +9,9 @@ Jean-Patrick G. (kilbith) <jeanpatrick.guerrero@gmail.com> (MIT)
 
 Author of media (textures)
 --------------------------
-
+paramat (CC BY-SA 3.0):
-Jean-Patrick G. (kilbith) <jeanpatrick.guerrero@gmail.com> (CC BY-SA 3.0):
-
-* creative_trash_icon.png
-
-Diego Martínez (kaeza) (CC BY-SA 3.0):
-
 * creative_prev_icon.png
 * creative_next_icon.png
 * creative_search_icon.png
 * creative_clear_icon.png
+* creative_trash_icon.png derived from a texture by kilbith (CC BY-SA 3.0)

mods/creative/license.txt

@@ -30,6 +30,7 @@ Licenses of media (textures)
 
 Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
 Copyright (C) 2016 Jean-Patrick G. (kilbith) <jeanpatrick.guerrero@gmail.com>
+Copyright (C) 2018 paramat
 
 You are free to:
 Share — copy and redistribute the material in any medium or format.