Drip - Better full-canvas effect; proper description

h/t Karl, code by Pere (w/ some clean-up by me)

Closes https://sourceforge.net/p/tuxpaint/bugs/256/

src/po/be.po

@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: tuxpaint\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-07-03 16:31-0700\n"
+"POT-Creation-Date: 2022-07-03 16:39-0700\n"
 "PO-Revision-Date: 2014-06-10 23:09+0300\n"
 "Last-Translator: Hleb Valoshka <375gnu@gmail.com>\n"
 "Language-Team: none\n"
@@ -1408,12 +1408,18 @@ msgstr "Націсніце і павадзіце па малюнку, каб р
 msgid "Click to turn the entire picture into a chalk drawing."
 msgstr "Націсніце і павадзіце па малюнку, каб размаляваць яго мелам."
 
-#: ../../magic/src/blocks_chalk_drip.c:174
+#: ../../magic/src/blocks_chalk_drip.c:176
 #, fuzzy
 #| msgid "Click and move the mouse around to make the picture drip."
 msgid "Click and drag the mouse around to make the picture drip."
 msgstr "Націсніце і павадзіце па малюнку, каб накапаць на яго."
 
+#: ../../magic/src/blocks_chalk_drip.c:180
+#, fuzzy
+#| msgid "Click to sharpen the entire picture."
+msgid "Click to make the entire picture drip."
+msgstr "Націсніце, каб павялічыць рэзкасць малюнку."
+
 #: ../../magic/src/blur.c:81
 msgid "Blur"
 msgstr "Размыццё"