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Conventions for images and callouts

…for screenshots and diagrams in our docs

Images

We use 2x images for screenshots. Max width is currently 1400px.
png usually but jpg is often better filesize-wise. compress it.

Necessary Callout Styles

Arrow calling out a piece of UI
- E.g the Styles pane.
Rectangle around a piece of text/UI where an arrow is insufficient.
- E.g: settings pane. Lots of text. An arrow isn't as useful unless it's small or has a large head to it. Rectangle makes more sense there
- If only one rectangle is used, should it still have an arrow with a label? or would we prefer to just call out in the text
Rectangles with accompanying labels.
- Where you need to point out multiple pieces of small UI, each of which requires a label
- Alternatives: rectangles with numbers next to them. Reference the numbers in text below the screenshot. Pros: you don't have to worry about editing the text in future revisions of the shot. Easier to update text. Translate. etc.

Working Callout Style Standard:

font:
- 19px Droid Sans
- fontsquirrel.com/fonts/Droid-Sans (can download TTF here. Install the bold, too)
- ← sans
line thickness, style
- * Above is ideal thickness and arrow head size. * Shadow added generally improves the annotation.
color:
- Green! Somewhere around #409B44 or rgb(64,155,68)
- Chrome green:
arrow vs rectangle:
- Both! But **preferring Arrow **when there's a choice.
- Arrows are effective at quickly drawing attention to certain focal points of the image. When there's a choice, use them.
  - An example showing both arrow and rectangle. Arrow-only would be very effective here.
- There will be cases where the focal point will be a large area and the best way to draw attention to it use to highlight the whole thing. A rectangle may be appropriate here.
  - This example would be have done more effectively with two rectangles:
- Still, a complex UI may require both annotation symbols. The following example would be difficult to do without using both:
Using text outside UI screenshot vs. inside it
- Ideal to not overlap annotation text over existing UI text. Find some whitespace!
  - This may stay within the UI or go outside.
Use of text in image.
- While in-image text annotation is very useful, do make sure that the text outside the image also captures what is being said in the image. This makes sure that the Cons listed below do not hurt the accessibility of the content.
- For example, Addy's classic red, 4-step workspaces image. We shouldn't put that in the docs without having document text that explains the same steps.
- Cons
  - Breaks Cmd+F
  - Breaks screenreaders, and SEO
  - Raster, doesn't scale/zoom as well.
  - Maintenance burden.
- Pros
  - Visual focus stays in one place to absorb the value of the image. Less back 'n forth.
Workflow
- If the screenshot shows a workflow (step 1,2,3) or (evaluation -> result) then try to indicate the progression.
- Directions:
  - Top to bottom
  - Top/left to bottom/right
- Ya know… if possible.