Another ‘quickie’.
Rather than update the central /usr/share/scite/SciTEGlobal.properties, just pull in the user’s properties from SciTE’s Options-OpenUserOptionsFile.
There, add the following :

find.files=*.p*|*.js|*.[ch]*
if PLAT_GTK
 find.command=grep -R  –include ‘$(find.files)’ –exclude ‘*.svn*’ -i –line-number ‘$(find.what)’ .
tabsize=1
indent.size=1
use.tabs=0
indent.size.*.py=4
# NB : tabsize becomes tab.size for filepatterns…
tab.size.*.py=4
lexer.html.mako=1
source.files=$(source.files);*.css;*.scss
filter.css=CSS (css scss)|*.css;*.scss|
lexer.*.css=css
lexer.*.scss=css
# Depending on how much you like monospace…
font.base=$(font.monospace)
font.small=$(font.monospace)
font.comment=$(font.monospace)
font.text=$(font.monospace)
font.text.comment=$(font.monospace)
font.embedded.base=$(font.monospace)
font.embedded.comment=$(font.monospace)
font.vbs=$(font.monospace)
# Turn word-wrap on (definitely a matter [...]

This should be a no-brainer for anyone carrying anything important around on a laptop.
IMHO, relying on a user password (like a login password) is not a great idea, since anyone with physical access to the disk can get to your data easily. OTOH, using disk encryption seems like overkill – since if [...]