Translations:Theme editor/10/en
From LimeSurvey Manual
Themes, being HTML and Twig code, tend to define the positioning and type of text to be displayed and similar structural features of the page. They often reference or include other files. Most of them reference a common cascading style sheets (CSS) file that defines the font style, color, size, background, and similar parameters common to all pages in the survey. Style sheets reference HTML class parameters that are associated with the various types of objects in the HTML code. This allows the style sheet to define how to display each of the many types of text or other objects that may appear in multiple places. There are unique classes for each question type in LimeSurvey and thus giving detailed control over the appearance of each. Image files, like logos or special progress-bar constructors, may be referenced as well in the Theme file. Finally, special keywords in curly braces are replaced with text defined in the survey for each language translation correspondent (for example, the 'Survey Title' or 'Question Text' for each language defined).