Following are the language codes (shown in italics) supported by Sticky Notes pastebin:

1. 4cs - GADV 4CS
2. 6502acme - ACME Cross Asm
3. 6502kickass - Kick Asm
4. 6502tasm - TASM/64TASS 1.46 Asm
5. 68000devpac - HiSoft Devpac ST 2 Asm
6. abap - ABAP
7. actionscript - ActionScript
8. actionscript3 - ActionScript 3
9. ada - Ada
10. algol68 - ALGOL 68
11. apache - Apache configuration
12. applescript - AppleScript
13. apt_sources - Apt sources
14. asm - ASM
15. asp - ASP
16. autoconf - Autoconf
17. autohotkey - Autohotkey
18. autoit - AutoIt
19. avisynth - AviSynth
20. awk - awk
21. bash - Bash
22. basic4gl - Basic4GL
23. bf - Brainfuck
24. bibtex - BibTeX
25. blitzbasic - BlitzBasic
26. bnf - bnf
27. boo - Boo
28. c - C
29. c_loadrunner - C (LoadRunner)
30. c_mac - C (Mac)
31. caddcl - CAD DCL
32. cadlisp - CAD Lisp
33. cfdg - CFDG
34. cfm - ColdFusion
35. chaiscript - ChaiScript
36. cil - CIL
37. clojure - Clojure
38. cmake - CMake
39. cobol - COBOL
40. cpp - C++
41. cpp-qt -   C++ (Qt)
42. csharp - C#
43. css - CSS
44. cuesheet - Cuesheet
45. d - D
46. dcs - DCS
47. delphi - Delphi
48. diff - Diff
49. div - DIV
50. dos - DOS
51. dot - dot
52. e - E
53. ecmascript - ECMAScript
54. eiffel - Eiffel
55. email - eMail (mbox)
56. epc - EPC
57. erlang - Erlang
58. f1 - Formula One
59. falcon - Falcon
60. fo - FO (abas-ERP)
61. fortran - Fortran
62. freebasic - FreeBasic
63. fsharp - F#
64. gambas - GAMBAS
65. gdb - GDB
66. genero - genero
67. genie - Genie
68. gettext - GNU Gettext
69. glsl - glSlang
70. gml - GML
71. gnuplot - Gnuplot
72. go - Go
73. groovy - Groovy
74. gwbasic - GwBasic
75. haskell - Haskell
76. hicest - HicEst
77. hq9plus - HQ9+
78. html4strict - HTML
79. icon - Icon
80. idl - Uno Idl
81. ini - INI
82. inno - Inno
83. intercal - INTERCAL
84. io - Io
85. j - J
86. java - Java
87. java5 - J2SE
88. javascript - Javascript
89. jquery - jQuery
90. kixtart - KiXtart
91. klonec - KLone C
92. klonecpp - KLone C++
93. latex - LaTeX
94. lb - Liberty BASIC
95. lisp - Lisp
96. locobasic - Locomotive Basic
97. logtalk - Logtalk
98. lolcode - LOLcode
99. lotusformulas - Lotus Notes
100. lotusscript - LotusScript
101. lscript - LScript
102. lsl2 - LSL2
103. lua - Lua
104. m68k - Motorola 68000 Asm
105. magiksf - MagikSF
106. make - GNU make
107. mapbasic - MapBasic
108. matlab - Matlab M
109. mirc - mIRC Scripting
110. mmix - MMIX
111. modula2 - Modula-2
112. modula3 - Modula-3
113. mpasm - Microchip Asm
114. mxml - MXML
115. mysql - MySQL
116. newlisp - newlisp
117. nsis - NSIS
118. oberon2 - Oberon-2
119. objc - Objective-C
120. objeck - Objeck
121. ocaml - OCaml
122. ocaml-brief -   OCaml (brief)
123. oobas - OpenOffice.org Basic
124. oracle11 - Oracle 11 SQL
125. oracle8 - Oracle 8 SQL
126. oxygene - Oxygene (Delphi Prism)
127. oz - OZ
128. pascal - Pascal
129. pcre - PCRE
130. per - per
131. perl - Perl
132. perl6 - Perl 6
133. pf - OpenBSD Packet Filter
134. php - PHP
135. php-brief -   PHP (brief)
136. pic16 - PIC16
137. pike - Pike
138. pixelbender - Pixel Bender 1.0
139. plsql - PL/SQL
140. postgresql - PostgreSQL
141. povray - POVRAY
142. powerbuilder - PowerBuilder
143. powershell - PowerShell
144. progress - Progress
145. prolog - Prolog
146. properties - PROPERTIES
147. providex - ProvideX
148. purebasic - PureBasic
149. python - Python
150. q - q/kdb+
151. qbasic - QBasic/QuickBASIC
152. rails - Rails
153. rebol - REBOL
154. reg - Microsoft Registry
155. robots - robots.txt
156. rpmspec - RPM Specification File
157. rsplus - R / S+
158. ruby - Ruby
159. sas - SAS
160. scala - Scala
161. scheme - Scheme
162. scilab - SciLab
163. sdlbasic - sdlBasic
164. smalltalk - Smalltalk
165. smarty - Smarty
166. sql - SQL
167. systemverilog - SystemVerilog
168. tcl - TCL
169. teraterm - Tera Term Macro
170. thinbasic - thinBasic
171. tsql - T-SQL
172. typoscript - TypoScript
173. unicon - Unicon
174. vala - Vala
175. vb - Visual Basic
176. vbnet - VB.NET
177. verilog - Verilog
178. vhdl - VHDL
179. vim - Vim Script
180. visualfoxpro - Visual Fox Pro
181. visualprolog - Visual Prolog
182. whitespace - Whitespace
183. whois - Whois (RPSL format)
184. winbatch - Winbatch
185. xbasic - XBasic
186. xml - XML
187. xorg_conf - Xorg configuration
188. xpp - X++
189. z80 - ZiLOG Z80 Asm
190. zxbasic - ZXBasic