Sample 5-4: Yellow and Blue Highlighting

 1 ⠀⠀⠀⠀⠀⠀,',symbols us$3
 2 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
 3 _bh ,blue hi<li<t+
 4 _yh ,yell[ hi<li<t+
 5 ,' 7#f1 #c7 ,t]m9,n 9dicator,'
 6 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
 7 ,r1d ! foll[+ p>agraph4 ,!
 8 _yh _.details ,' (! summ>y >e hi<li<t$ 9
 9 yell[4 ,! _bh _.summ>y ,' has be5
10 hi<li<t$ 9 blue4
11 ⠀⠀,! ,egyptians 7 v _yh curi\s ab h[ !
12 ,nile ,riv] 0 a# 6flood s regul>ly4 ,'
13 ,!y ?"\ ( _yh ways 6predict :5 ! ,nile
14 wd flood4 ,' ,! _yh ,egyptians made
15 devices 6help !m record 9=m,n ab !
16 ,nile4 ,' _bh ,_m p 9 ! pa/ 7 9t]e/$ 9 !
17 ,nile ,riv]4 ,'8