Rich Text

The text for UI elements and text meshes can incorporate multiple font styles and sizes. Rich text is supported both for the UI System and the legacy GUI system. The Text, GUIStyle, GUIText and TextMesh classes have a Rich Text setting which instructs Unity to look for markup tags within the text. The Debug.Log function can also use these markup tags to enhance error reports from code. The tags are not displayed but indicate style changes to be applied to the text.

Markup format

Система разметки текста в Unity была создана на основе HTML, однако при этом строгая совместимость со стандартным HTML не подразумевается. Основная идея заключается в том, что фрагменты текста можно заключать в пару согласующихся друг с другом тегов:-

We are <b>not<b> amused.

As the example shows, the tags are just pieces of text inside the “angle bracket” characters, < and >.

You place the opening tag at the beginning of the section. The text inside the tag denotes its name (which in this case is just b).

You place another tag at the end of the section. This is the closing tag. It has the same name as the opening tag, but the name is prefixed with a slash / character. Every opening tag must have a corresponding closing tag. If you don’t close an opening tag, it is rendered as regular text.

The tags are not displayed to the user directly but are interpreted as instructions for styling the text they enclose. The b tag used in the example above applies boldface to the word “not”, so the text appears ons creen as:-

We are not amused

Размеченный фрагмент текста (включая оборачивающие его теги) также называется элементом.

Nested elements

Существует возможность применять более одного стиля к фрагменту текста при помощи «вложения» одних элементов в другие.

We are <b><i>definitely not</i></b> amused

The <i> tag applies italic style, so this would be presented onscreen as

We are definitely not amused

Note the ordering of the closing tags, which is in reverse to that of the opening tags. The reason for this is perhaps clearer when you consider that the inner tags need not span the whole text of the outermost element

We are <b>absolutely <i>definitely</i> not</b> amused

дает следующий результат:

We are absolutely definitely not amused

Tag parameters

Some tags have a simple all-or-nothing effect on the text but others might allow for variations. For example, the color tag needs to know which color to apply. Information like this is added to tags by the use of parameters:-

We are <color=green>green</color> with envy

Which produces this result:

Note that the ending tag doesn’t include the parameter value. Optionally, the value can be surrounded by quotation marks but this isn’t required.

Tag parameters cannot include blank spaces. For example:

We are <color = green>green</color> with envy

does not work because of the spaces to either side of the = character.

Supported tags

The following list describes all the styling tags supported by Unity.

Tag	Описание	Шестнадцатиричный код	Notes
b	Renders the text in boldface.	We are <b>not</b> amused.
i	Renders the text in italics.	We are <i>usually</i> not amused.
size	Sets the size of the text according to the parameter value, given in pixels.	We are <size=50>largely</size> unaffected.	Although this tag is available for Debug.Log, you will find that the line spacing in the window bar and Console looks strange if you set the size too large.
color	Sets the color of the text according to the parameter value. You can specify the color in HTML format, as in #rrggbbaa, where the letters correspond to pairs of hexadecimal digits denoting the red, green, blue and alpha (transparency) values for the color. For example, cyan at full opacity is specified by color=#00ffffff… You can specify hexadecimal values in uppercase or lowercase; #FF0000 is equivalent to #ff0000.	We are <color=#ff0000ff>colorfully</color> amused	Another option is to use the name of the color. This is easier to understand but naturally, the range of colors is limited and full opacity is always assumed. <color=cyan>some text</color> The available color names are given in the table below.
material	This is only useful for text meshes and renders a section of text with a material specified by the parameter. The value is an index into the text mesh’s array of materials as shown by the inspector.	We are <material=2>texturally</material> amused
quad	Renders an image inline with the text. This is only useful for text meshes. It takes parameters that specify the material to use for the image, the image height in pixels, and a further four that denote a rectangular area of the image to display. Unlike the other tags, quad does not surround a piece of text and so there is no ending tag - the slash character is placed at the end of the initial tag to indicate that it is “self-closing”.	<quad material=1 size=20 x=0.1 y=0.1 width=0.5 height=0.5>	This selects the material at the position in the renderer’s material array and sets the height of the image to 20 pixels. The rectangular area of the image starts at the position given by the x, y, width and height values, which are all given as a fraction of the unscaled width and height of the Texture.

Supported colors

The following table lists colors for which you can use a name instead of a hexadecimal tag in the <color> rich text tag.

Название цвета	Шестнадцатиричный код	Пример
aqua (same as cyan)	#00ffffff
black	#000000ff
blue	#0000ffff
brown	#a52a2aff
cyan (same as aqua)	#00ffffff
darkblue	#0000a0ff
fuchsia (same as magenta)	#ff00ffff
green	#008000ff
grey	#808080ff
lightblue	#add8e6ff
lime	#00ff00ff
magenta (same as fuchsia)	#ff00ffff
maroon	#800000ff
navy	#000080ff
olive	#808000ff
orange	#ffa500ff
purple	#800080ff
red	#ff0000ff
silver	#c0c0c0ff
teal	#008080ff
white	#ffffffff
yellow	#ffff00ff

Editor GUI

Rich text is disabled by default in the Editor GUI system but it can be enabled explicitly using a custom GUIStyle. The richText property should be set to true and the style passed to the GUI function in question:-

GUIStyle style = new GUIStyle ();
style.richText = true;
GUILayout.Label("<size=30>Some <color=yellow>RICH</color> text</size>",style);