Added SVG optimization guideline (#1972)

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Jack Chou 2020-07-03 20:11:57 -07:00 committed by GitHub
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@ -96,8 +96,12 @@ See https://www.privacytools.io/providers/vpn/#criteria for more details.
## Images
- SVG file format is strongly preferred. PNG files can be used as a fallback if images are too complex or otherwise unsuitable as a vector format.
- We like to optimize all SVGs we add to the site. [This](https://github.com/privacytools/privacytools.io/pull/1968#issuecomment-652773633) is a helpful guide as to how we do it with [Inkscape](https://inkscape.org/)
- Some SVGs generated by Illustrator or Sketch are broken, therefore copying the SVG content to a new canvas is sometimes required. (We found this with the Mailcow logo). Looked fine in local builds but was wrong once rendered through netlify preview etc.
- We only have SVGs that have a canvas size of 128x128px or 384x128px.
- Provider logo dimensions are 384px x 128px ([example](https://github.com/privacytools/privacytools.io/blob/master/assets/img/svg/3rd-party/mullvad.svg))
- Tool logo dimensions are 120px x 120px ([SVG example](https://github.com/privacytools/privacytools.io/blob/master/assets/img/svg/3rd-party/firefox_browser.svg), [PNG example](https://github.com/privacytools/privacytools.io/blob/master/assets/img/png/3rd-party/claws_mail.png))
- Tool logo dimensions are 128px x 128px ([SVG example](https://github.com/privacytools/privacytools.io/blob/master/assets/img/svg/3rd-party/firefox_browser.svg), [PNG example](https://github.com/privacytools/privacytools.io/blob/master/assets/img/png/3rd-party/claws_mail.png))
## Licensing