The colors used to highlight HTML and other file types can be changed using HTML-Kit Tools Colorizer Styles.

To customize Colorizer styles, open "View > Colorizer > Styles > Edit" from the main menu. Select "MyStyle" from the list of available styles. Make any changes and click "Apply" to test the changes. If a document is open in the editor, it'll be displayed with the updated Colorizer. Finally click "OK" to close the manager dialog.
| Attribute | Short Name | Description | Example |
| name | n | Colorizer item name or element ID. | n="attr_value" |
| foreground | f | Foreground color | f="#000000" |
| background | b | Background color | b="#ffffff" |
| fontstyle | s | Font style. B = bold, I = italic, U = underlined. | s="IB" |
| fontsize | - | Font size. "+1" increases the current font style by 1. "-2" decreases the font size by 2. | fontsize="+3" |
| fontname | - | Font name. | fontname="Arial" |
<colorizer> <type name="html"> <group> <item name="default" foreground="green" /> <!-- additional items --> </group> <!-- additional groups --> </type> <!-- additional types --> </colorizer>
Colors and font styles specified in top items filter down to child items. For example, if a <type> tag specifies a background color of "yellow" all groups and items inside it assume a yellow background color, unless a group or an item specifies its own background color.
<type name="html" background="yellow">
<!-- items in Group1 have a yellow background,
except "comment" -->
<group name="Group1">
<item name="default" foreground="black" />
<item name="string_doubleq" foreground="cyan" />
<item name="comment" f="black" b="green" />
</group>
<!-- items in Group2 have a white background
and a blue foreground -->
<group name="Group2" b="white" f="blue">
<item name="tag" />
<item name="attr" />
</group>
</type>
The meaning of the "name" attribute depends on the tag. Inside the "type" tag, the "name" specifies the name of the Colorizer Type. It has to be a known name, such as html, xml or other valid Colorzer Type. The "name" attribute inside "group" tags can be any name as long as it is a unique name that consists of a-z, 0-9 and underline characters. All "item" tags must specify a valid Colorizer Item name such as default, tag and attr (depending on the Colorizer Type). One exception to this rule is that an item tag can set name attribute to "*" (<item name="*" />) to indicate that it overs any items not specifically listed.
The "group" tags are there to make it easier to categorize Colorizer Items. Each "type" tag must have at least one "group" tag. By using multiple "group" tags, it's possible to avoid having to repeat styles that apply to different groups of items.
<!-- items in GroupA have a white background,
except "comment" -->
<group name="GroupA" background="white">
<item name="default" foreground="black" />
<item name="string_doubleq" foreground="cyan" />
<item name="comment" f="black" b="green" />
</group>
<!-- items in GroupB have a yellow background and
a blue foreground except "entity" -->
<group name="GroupB" b="yellow" f="blue">
<item name="tag" />
<item name="attr" />
<item name="entity" foreground="olive" />
</group>
Additional examples can be viewed in the Colorizer Style Manager and on the plugins page.