# News On Updates in F-Sy-H
**2018-08-09**
Added ideal string highlighting – FSH now handles any legal quoting and combination of `"`,`'` and `\` when
highlighting program arguments. See the introduction for an example (item #14).
**2018-08-02**
Global aliases are now supported:
**2018-08-01**
Hint – how to customize styles when using Zplugin and turbo mode:
```zsh
zplugin ice wait"1" atload"set_fast_theme"
zplugin light zdharma/fast-syntax-highlighting
set_fast_theme() {
FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}paired-bracket]='bg=blue'
FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}bracket-level-1]='fg=red,bold'
FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}bracket-level-2]='fg=magenta,bold'
FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}bracket-level-3]='fg=cyan,bold'
}
```
If you have set theme before an update of styles (e.g. recent addition of bracket highlighting)
then please repeat `fast-theme {theme}` call to regenerate theme files. (**2018-08-09**: FSH
now has full user-theme support, refer to [appropriate section of README](#customization)).
**2018-07-30**
Ideal highlighting of brackets (pairing, etc.) – no quoting can disturb the result:
`FAST_HIGHLIGHT[use_brackets]=1` to enable this feature (**2018-07-31**: not needed anymore, this highlighting is active by default).
**2018-07-21**
Chroma architecture now supports aliases. You can have `alias mygit="git commit"` and when `mygit`
will be invoked everything will work as expected (Git chroma will be ran).
**2018-07-11**
There were problems with Ctrl-C not working when using FSH. After many days I've found a fix
for this, it's pushed to master.
Second, asynchronous path checking (useful on e.g. slow network drives, or when there are many files in directory)
is now optional. Set `FAST_HIGHLIGHT[use_async]=1` to enable it. This saves some users from Zshell crashes
– there's an unknown bug in Zsh.
**2018-06-09**
New chroma functions: `awk`, `make`, `perl`, `vim`. Checkout the [video](https://asciinema.org/a/186234),
it shows functionality of `awk` – compiling of code and NOT running it. Perl can do this too:
[video](https://asciinema.org/a/186098).
**2018-06-06**
FSH gained a new architecture – "chroma functions". They are similar to "completion functions", i.e. they
are defined **per-command**, but instead of completing that command, they colorize it. Two chroma exist,
for `Git` ([video](https://asciinema.org/a/185707), [video](https://asciinema.org/a/185811)) and for `grep`
([video](https://asciinema.org/a/185942)). Checkout
[example chroma](https://github.com/zdharma/fast-syntax-highlighting/blob/master/chroma/-example.ch) if you
would like to highlight a command.
**2018-06-01**
Highlighting of command substitution (i.e. `$(...)`) with alternate theme – two themes at once! It was just white before:
To select which theme to use for `$(...)` set the key `secondary=` in [theme ini file](https://github.com/zdharma/fast-syntax-highlighting/blob/master/themes/free.ini#L7).
All shipped themes have this key set (only the `default` theme doesn't use second theme).
Also added correct highlighting of descriptor-variables passed to `exec`:
**2018-05-30**
For-loop is highlighted, it has separate settings in [theme file](https://github.com/zdharma/fast-syntax-highlighting/blob/master/themes/free.ini).
**2018-05-27**
Added support for 256-color themes. There are six themes shipped with FSH. The command to
switch theme is `fast-theme {theme-name}`, it has a completion which lists available themes
and options. Checkout [asciinema recording](https://asciinema.org/a/183814) that presents
the themes.
**2018-05-25**
Hash holding paths that shouldn't be grepped (globbed) – blacklist for slow disks, mounts, etc.:
```zsh
typeset -gA FAST_BLIST_PATTERNS
FAST_BLIST_PATTERNS[/mount/nfs1/*]=1
FAST_BLIST_PATTERNS[/mount/disk2/*]=1
```
**2018-05-23**
Assign colorizing now spans to variables defined by `typeset`, `export`, `local`, etc.:
Also, `zcalc` has a separate math mode and specialized highlighting – no more light-red colors because of
treating `zcalc` like a regular command-line:
**2018-05-22**
Array assignments were still boring, so I throwed in bracked colorizing:
**2018-05-22**<a name="assign-update"></a>
Assignments are no more one-colour default-white. When used in assignment, highlighted are:
- variables (outside strings),
- strings (double-quoted and single-quoted),
- math-mode (`val=$(( ... ))`).
**2018-01-06**
Math mode is highlighted – expressions `(( ... ))` and `$(( ... ))`. Empty variables are colorized as red.
There are 3 style names (fields of
[FAST_HIGHLIGHT_STYLES](https://github.com/zdharma/fast-syntax-highlighting/blob/master/fast-highlight#L34)
hash) for math-variable, number and empty variable (error): `mathvar`, `mathnum`, `matherr`. You can set
them (like the animation below shows) to change colors.
