BioRender has a built-in “view in grayscale” feature that allows you to check the contrast of an illustration. Contrast refers to how easily you can distinguish one object from another, such as text overlaid on a shape.
We recommend checking your contrast before exporting since high-contrast illustrations are easier to understand at a quick glance. This feature also helps determine if your illustration will be legible in various scenarios:
When viewed on a low-resolution screen
When printed in black and white
When viewed by color-blind audiences
You can tell if your illustration has high contrast when you can still see all your icons and objects clearly in grayscale preview, and nothing disappears into the background or blends in.
How to view your illustration in grayscale
You can toggle View in Grayscale on from the canvas using:
the top toolbar,
the “View canvas in grayscale” button,
The export preview window, or
From the top toolbar
Click on View in the top toolbar, and select Canvas in Grayscale from the drop-down menu. A checkmark will appear next to the menu item.
To disable grayscale preview, simply click View in Grayscale again.
Using keyboard shortcuts
Click Alt+G (for PC) or Option+G (for Mac) on your keyboard.
To disable, simply repeat the above step.
Using the “View canvas in grayscale” button
Click the “View canvas in grayscale” button.
To disable, click the button again.
Previewing in grayscale at export
Click on the blue Export button in the top-right corner of your canvas. You’ll see an export window pop-up.
In the bottom-left corner of the window, click the switch labelled “Preview in grayscale”.
To disable this, click the switch again.
Note: to learn more about the grayscale feature, hover over the View in Grayscale button, then click Learn more about grayscale or the question mark icon.