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How to Create a Checkerboard Paragraph Rule

In a recent InDesign Secrets article, Keith Gilbert explored How to Add a Rule Around a Paragraph. It is a very cool trick using gradients composed of bands of color that transition sharply from one color to the next. One of our readers then commented: “I wonder if anyone has worked out a way to combine this with underline to create a hacked shaded box.” And today I will explain how to do just that. This technique uses both InDesign and Illustrator.

I started using the same technique that Keith used, but I wanted to see how far I could push the limit of InDesign gradient. Methodically, I added and adjusted gradient stops until I had a gradient consisted of 20 distinct color breaks. Now, initially, these stripes look quite similar to the American Flag Stroke Style I made a couple of years ago. But notice that this simple line is a solid stroke style, and the stripes are created just by the use of precisely positioned gradient stops.

GradientStopsonaSolidStroke

The Advantage of Making Gradients in Illustrator

Before we get too far into this, I want to remind you that you can Copy Vectors from Illustrator to InDesign (or vice versa). And when editing complex gradients, it’s a heck of a lot easier to do it in Illustrator than it is in InDesign because in some Illustrator panels (including the Gradient panel) are super-expandable! I was able to expand Illustrator’s gradient panel to the entire width of my 27″ monitor! (Compare that with the teeny tiny width of InDesign’s Gradient panel.

EditGradientsinIllsutrator

Illustrator Gradient panel

 

So using your vector-editing program of choice, build a nice, complex, gradient consisting of 20 different stripes. If you edited your gradient in Illustrator, now is the time to copy and paste your line back into InDesign. Just by doing so, InDesign will automatically add the gradient as a new swatch. If you decide to make more or fewer stripes in your gradient, be sure to use an even number of stripes.

Reverse the Gradient

The reason for the even number of stripes is because we’re going to flip the gradient. In the Gradient panel, click the “Reverse” button. Now make a second swatch.

FlipTheGradient

You’ll see that we have two distinct (though similar) swatches: one begins with white and ends with black; the second begins with black and ends with white.

GradientSwatches

Black and White Gradient Swatches

Since those swatches are very small, and the thumbnails are too small to accurately represent the gradients, try applying the gradients to a couple of lines in order to better see how the gradients are reversed.TwoDifferentGradientSwatches

Create a Paragraph Rule

Now, let’s apply the first gradient to a Paragraph Rule to see what happens. With your text insertion point inside the word, go to Paragraph panel menu and choose Paragraph Rules.

ParagraphRulesInFlyoutMenu

Then apply the following settings. Because the Paragraph Rule will extend the entire width of whatever you specify (Column or Text), the width of the individual stripes is  flexible and dynamic.

Paragraph Rule Applied To Column Width

Paragraph Rule Applied To Column Width

 

Paragraph Rule Applied To Text Width

Paragraph Rule Applied To Text Width

Change the Stroke Style Used in Your Paragraph Rule

By changing the Stroke Style of the Paragraph Rule (this example uses “Thick – Thick”), we can quickly see how this is moving toward the checkerboard effect we’re after. What we need next is a way to fill in the center area with our second gradient swatch.

ParagraphRule_ThickThick

Using Gap Color

By choosing our second gradient swatch (the reversed one) for the gap color, we instantly create a checkerboard pattern.

RectangularCheckboardPattern

 

But what if you just want a stack of two checkerboards instead of three? No problem! You just need to make a custom Stroke Style that covers only 50% of the stripe width. Go to the Stroke Styles Panel flyout menu > Stroke Styles.

HowToGetToStrokeStyles

Create a new Stroke Style with the following settings:50:50StrokeStyle

Now go back to your Paragraph Rules and choose the new Stroke Style you just made.

ParagraphRuleWith50-50StrokeStyle

Making Perfect Squares in the Checkerboard Pattern

You may notice that the rectangles in the checkerboard aren’t perfectly square. To make them square, you’ll need to adjust the measurements of your text frame and the point size of the paragraph rule, so that the point size of the paragraph rule is evenly divisible by the width of the text frame. In my case, I made the text frame 120 points wide and the paragraph rule 12 points thick.

FixTheMath

 

Changing the Color of the Checkerboard

So now comes the inevitable dilemma: you spent all this time creating the gradient (which was no small task) and now your boss/client wants to change the color. Here’s how.

  1. Apply the gradient to a line.
  2. Copy and paste it into a new Illustrator document.
  3. Delete all the default swatches and create a new Color Group with a single swatch. (Bonus tip: make the new color swatch a Global Color for easier editing down the road).
  4. Select your gradient line and choose Recolor Artwork.
  5. Choose the “1 color job” preset.
  6. Choose Library: Document Swatches

 

IllustratorRedGlobalSwatchAndColorGroup

3. Create a new Color Group with a Single Swatch

RecolorArtwork

4. Recolor Artwork

RecolorPresets

5. Recolor Preset: 1 Color Job

Color Library: Document Swatches

6. Color Library: Document Swatches

Voilà! A red and white striped gradient that didn’t take 15 minutes to create! RedGradient

Copy and paste the object back into InDesign. When you do this, InDesign automatically adds a new red and white gradient swatch to your Swatches panel. Next you’ll need to reverse it in order to get the second version of the swatch that you need. Once you’ve reversed the gradient (using the Gradient panel) add the new gradient to your Swatch panel.

4 Gradient Swatches in InDesign

4 Gradient Swatches in InDesign

Now go back to your paragraph rule and apply the new red and white gradients to your rule and gap colors.

RedCheckboardParagraphRule

 

The final step to make the effect complete is to apply the appropriate font and color to the typeface.

HamburgerStand

Because the checkerboard is an actual paragraph rule, it can be included as part of a paragraph style, and the checkerboard will always reflow along with the text.

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Enjoy!

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Kelly Vaughn

Kelly Vaughn

Kelly Vaughn (a.k.a. "Document Geek") has over a decade of print and design experience. She holds Adobe Expert Certifications In InDesign, Illustrator, Photoshop, and Acrobat, and specializes in writing and designing technical manuals for the marine industry. She is the chapter representative for the Raleigh, North Carolina, InDesign User Group. In her spare time, she enjoys knitting, dachshunds, and learning to garden.
Kelly Vaughn

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6 Comments on “How to Create a Checkerboard Paragraph Rule

  1. I achieved the same appearance using a dashed line I created for rule above and then reversing the colors for rule below and adjusting the offsets for each. Didn’t have to mess around with gradients.

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