You can change color for the built-in icons only. Balsamiq has quite a big set of icons, which covers 99.9% needs at the stage of wireframing. Please note, the wireframes are not the final design. The goal of the wireframes it to explore the possible solutions and move to the next stage ASAP. I always say this to customers, so we are on the same page and discuss interaction level only.
And for the rest 0.01% cases, I have good news for you. To re-color your custom PNG icon, follow the steps:
- Make sure your PNG is bi-tonal (black icon on a white background or vice versa for filled icon). For best results, use at least 48×48 image size, or bigger
- Insert your PNG into Balsamiq as an image
- Transform your image to icon with
CTRL + T shortcut ot
Transform to... item in context menu
- Change the color of the icon! The color applies to black parts only
It’s up to you, whether you want to spent the time on custom icons, or move your project faster to design and implementation phases.