Update loop images.

IfElse.md

@@ -51,7 +51,7 @@ Only the plain **if** block appears in the toolbox:
 
 ![](if.png)
 
-To add **else if** and **else** clauses, the user needs to click on the star icon, which opens a new window:
+To add **else if** and **else** clauses, the user needs to click on the gear icon, which opens a new window:
 
 ![](if-open.png)
 

Lists.md

@@ -32,7 +32,7 @@ It is less common, but possible, to create a list with values of different types
 
 ### changing number of inputs
 
-To change the number of inputs, click on the plus ("+") icon.  This opens a new window:
+To change the number of inputs, click on the gear icon.  This opens a new window:
 
 ![](list-create-list-modify-tooltip.png)
 

Loops.md

@@ -1,5 +1,5 @@
 
-The **Control** category holds blocks that control whether other blocks placed in their **body** are run.  (For example, in the below "repeat" block, the body contains the "print" block and its input.)  There are two types of control blocks: [IfElse](IfElse) (described on their own page) and these, which control how many times the body is run and, in some cases, the value of a variable used within the body.  These structures are called **loops** since the body is repeated (possibly) multiple times, reminiscent of a rope containing loops.    Each pass through the loop is called an **iteration**.  (How about our using the term "pass"?)  For more information, see https://en.wikipedia.org/wiki/Control_flow#Loops.
+The **Control** category holds blocks that control whether other blocks placed in their **body** are run.  (For example, in the below "repeat" block, the body contains the "print" block and its input.)  There are two types of control blocks: [IfElse](IfElse) (described on their own page) and these, which control how many times the body is run and, in some cases, the value of a variable used within the body.  These structures are called **loops** since the body is repeated (possibly) multiple times, reminiscent of a rope containing loops.  Each pass through the loop is called an **iteration**.  For more information, see https://en.wikipedia.org/wiki/Control_flow#Loops.
 
 # Blocks for Loop Creation
 

Text.md

@@ -90,6 +90,7 @@ The **in text...get substring** block allows a region of text to be extracted, s
   * letter #
   * letter # from end
   * the first letter
+
 and ending with:
   * letter #
   * letter # from end
@@ -103,8 +104,8 @@ In the following example, "abc" is extracted.
 
 This block creates a version of the input text that is either:
   * UPPER CASE (all letters upper-case)
-  * Title Case (first letters upper-case, other letters lower-case)
   * lower case
+  * Title Case (first letters upper-case, other letters lower-case)
 
 The result of the following block is "HELLO".
 
@@ -119,7 +120,7 @@ The following block removes space characters from:
   * the end of the text
   * both sides of the text
 
-The result of the following block is "hi   there".  (Spaces in the middle of the text are not affected.)
+The result of the following block is "hi   there".  (Spaces in the middle of the text are not affected.)
 
 ![](text-trim-spaces.png)