Lightstyle
Todo: Define lightstyle, and explain where they're used (namely toggled and "patterned" lights).
The following lightstyles are available in all 
GoldSrc, 
Source, and 
Source 2 games, with all styles except 12 being inherited from 
Quake:
Lightstyle presets
(epilepsy warning)Literal Value Description Sequence Preview 0 Normal m
10 Fluorescent flicker mmamammmmammamamaaamammma
2 Slow, strong pulse abcdefghijklmnopqrstuvwxyzyxwvutsrqponmlkjihgfedcba
11 Slow pulse, noblack abcdefghijklmnopqrrqponmlkjihgfedcba
5 Gentle pulse jklmnopqrstuvwxyzyxwvutsrqponmlkj
1 Flicker A mmnmmommommnonmmonqnmmo
6 Flicker B nmonqnmomnmomomno
3 Candle A mmmmmaaaaammmmmaaaaaabcdefgabcdefg
7 Candle B mmmaaaabcdefgmmmmaaaammmaamm
8 Candle C mmmaaammmaaammmabcdefaaaammmmabcdefmmmaaaa
4 Fast strobe mamamamamama
9 Slow strobe aaaaaaaazzzzzzzz
12 !FGD Underwater light mutation mmnnmmnnnmmnn
GoldSrc additionally has a style 63, which is the same as the light being off.
