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Mutator Windows The Browse window allows you to see how variations will affect the appearance of the current glyph. The Browse window is similar to the Glyph Ramp window whereby you can see a preview of the current glyph varied by two specified axes (one for horizontal and one for vertical). However, while the Ramp only shows and allows selection of intermediaries, Browse works like a sliding/tracking control. (the same Axes specified for the Glyph Ramp will be used). The Browse window must be used with the Display and Outline windows. Open the Display window, then click and drag the mouse in the Browse window - the glyph in the Display window will vary depending on the mouse position, movement, etc. If you hold down the Option key while dragging the mouse, the current outline will change to the variation settings once the mouse button is released.
The Display window simply shows what the current glyph looks like with the current variation settings. The Palette window shows all glyphs in the font, along with the glyph numbers, using the current variation settings. Clicking on a glyph will set it to be the current glyph. Displays the kerning list (if any) for the font. A tuple is a set of deltas at a particular location in an axis' space. For a glyph, it's a location in the font's variation space where the glyph has deltas. Normally this corresponds to extrema for each axis; a glyph can have deltas at any variation coordinate. Note: these coordinates are shown in normalized coordinates. Double clicking on a tuple sets the current variation to that coordinate. The Descriptors windows displays the list of descriptors for the current font. New descriptors can be added by typing (cmd-n). Descriptors are used to identify the style of a simple font - that is, a font that does not have variations. Instances are the named coordinates that a user will see when the font is used in a word processor (that supports variation fonts). Each instance consists of a name and a variation coordinate.
Displays, and lets users add/delete etc., transformations to the axes coordinates. The Axes window shows the definition of each variation axis. Each axis consists of a name, a 4-character tag (usually one of the standard tags registered with Apple), and the range of values along that axis that the font can display. Note: the default value for the axis represents the value that the font would have if it had no variations at all. The Deltas window shows the deltas that are specified for the current glyph at the current variation. Each delta consists of a point number and a movement in X and Y. Displays a text ramp (or waterfall) using user defined: text, min variation axes settings, max variation axes settings, number of steps between min and max settings, etc.. These properties can be set using the Text Ramp option from the Axis menu. The text can also be set as vertical (again from the Axis menu) This window displays a ramp grid of the current glyph whereby the user can specify the variation axes for the grid's horizontal and vertical axes, point size, intermediates etc. from the Ramp Grid option in the Axis menu. This window displays the current glyph in the current variation. The display menu controls how the outline is displayed, and allows you to add overlays that show the original outline and/or the template outline.
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