Tux Paint's Color palette includes a new Color Mixer option, which allows users to combine different proportions of primary colors (red, yellow, and blue) and shades (white, grey, and black) to create new colors, similar to mixing paints.
The Color Picker option, which previously offered a static palette of around sixty-five thousand color choices, now supports separate hue, saturation, and value settings, allowing users to choose from over sixteen million colors.
Also, a keyboard shortcut is now available for quick access to the Color Selector — the "pipette" tool used for picking colors from the current drawing.
The Paint and Lines tools now provide a way to adjust the spacing of brushes, allowing dotted lines or smearing effects to be made. Many brushes have been given better default spacing values, as well.
Two new variations of the Zoom Magic Tool, Tile Zoom and Rush, have been added. When shrinking a drawing with Tile Zoom, it replicates the drawing across the canvas in tiles, rather than filling the canvas with a solid background color. The Rush tool blurs the results.
Tux Paint's Shapes tool now offers hexagon (6-sided) and heptagon (7-sided) polygons. For shapes which can be stretched (rectangle, oval, etc.), the aspect ratio of the shape is displayed at the bottom while you make your adjustments. Instructional information shown while using some other tools has also been expanded.
Keyboard shortcuts, such as [Control]+[S] to save a drawing, are now accessed with the more traditional [⌘ Command] key when using Tux Paint on macOS. Sizing of Tux Paint's built-in on-screen keyboard has been improved. The look and feel of the user documentation has been improved.