Alignment and white space in Files

I think there is too little whitespace between the icons in Files and in the left panel (vertically).
Apart from that, icons should be horizontally centered. This could even allow users to ajust the whitespace for some amount.

ProblemType: Bug
DistroRelease: elementary OS 0.2
Package: elementary-desktop 1.289-0~363~precise1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
Uname: Linux 3.2.0-35-generic x86_64
ApportVersion: 2.0.1-0ubuntu15+elementary3~precise1
Architecture: amd64
CrashDB: elementary_meta
Date: Tue Jan 1 18:56:50 2013
InstallationMedia: elementary OS 0.2 "Luna" - Beta 1 amd64 (20121114)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: elementary-meta
SuspiciousXErrors:

ThirdParty: True
UpgradeStatus: No upgrade log present (probably fresh install)