Numix

Numix Base colors reference:

####Common Used: #fefefeff
#888888ff
#555555ff
#202020ff

#2aa198ff - ex: action/edit-find.svg
#268bd2ff - ex: action/help-about.svg
#dc322fff - ex: action/window-close.svg
#859900ff - ex: action/media-playback-start.svg
#6c71c4ff - ex: action/object-rotate-right.svg

Not too common:

#ef555cff - ex: 16/status/battery-000.svg
#52c8ffff - ex: category/applications-internet.svg
#eee6d4ff - ex: devices/media-cdr.svg

Directories:

#42a5f5ff - blue-folder.svg
#8d6e63ff - brown-folder.svg
#ffa726ff - default-folder.svg
#66bb6aff - green-folder.svg
#bdbdbdff - grey-folder.svg
#f57c00ff - orange-folder.svg
#f06292ff - pink-folder.svg
#7e57c2ff - purple-folder.svg
#ef5350ff - red-folder.svg
#ffca28ff - yellow-folder.svg

Numix Tips:

• Convert all strokes to path
• Convert squares to path
• Convert circles to path
• Convert fonts to path
• Do not use paths to hide some part of other paths (in this case integrate them)
• You should align the icons to the grid when possible to avoid blurry icons
• On mimetype icons the ideal is to keep the symbols just monochromatic
• Except just a few cases, the icons should be made for all sizes available in Numix: 16,22,24,32,48,64
• You can't define the icon as other license than GPL v3 or further GPL version, which is used on Numix Icon project
• Do not add a copyright notice of you to avoid conflict with the project's license
• The font common used on mimetypes and some others icons is Ubuntu Mono, if used as mimetype title uses bold instead of regular
• Remove any unnecessary parts that will not be showed on icon, it'll reduce the file size and the rendering time
• Try to keep the modern and flat style on icons
• Avoid copyrighted material that was not directly related to icon itself.