At the center of your tool wheel is a circle representing the current color and opacity of your current tool.
Tap the circle to bring up the COPIC color wheel. This wheel is a spectrum of colors hand-picked by Too Corporation to help artists and designers add consistency and beauty to their work while simplifying the matching process. These colors are mathematically sorted by pigment and saturation, and are represented on the wheel by a letter+number code. Visit here to learn more about Copic color theory. The values in Concepts are as similar as they can get to their real-life marker complements.
The color wheel is spinnable. Drag your finger up or down to turn the wheel.
From the inside of the wheel outward, you’ll see a tonal value spectrum along with true black and white, then a ring of your cool, warm, neutral and tonal grays, and finally the colors in their particular blending gradients. Tap on a color to set it to your active brush.
The Concepts color picker is certainly a traditional color-picking tool, but it also has some neat properties as part of a vector-based application.
You can access the color picker in a couple ways:
As you drag the color picker about your screen, you’ll notice:
The changeable color along the top half of the rim is the color your crosshairs are currently touching. This is the color your brush will take on if you let go of the color picker. The color picker searches among all layers of your drawing.
Notice that in the bottom of your screen is a popup where you can toggle between ‘Alpha On’ and ‘Alpha Off’. With alpha on, the color picker will ignore the background and also detect the opacity of the color. With alpha off, you will always get a color with 100% opacity that includes the background color in the mix (like traditional pixel apps).