You can style many C1TreeView elements using CSS to make their appearance unique. To make this customization easier, ComponentOne includes CSS selectors with each of its six built-in themes.
You can apply general CSS properties such as border, background, text, font, margin, padding, list, outline, and table to applicable CSS selectors.
For a list of common individual CSS selectors and grouped CSS selectors, select the C1TreeView control in your project and view the drop-down list next to the CssClass property in the Visual Studio Properties window.
C1TreeView CSS selectors begin with wijmo-wijtree: