Automatic conversion offers breadth with unavoidable guesswork
An automatic engine examines page colors and computes darker alternatives. The best systems understand background relationships, text contrast, images, SVG, inline styles, and embedded frames. Even then, the engine is making decisions about an unfamiliar design. A logo may be inverted when it should remain untouched, a chart may lose category contrast, or a shadow may become a distracting glow. Broad coverage requires heuristics because no extension can ship a hand-written map for every page.
Automatic conversion is still the practical answer for users who need dark mode across many sites. Per-site settings help correct difficult pages. Users should look for brightness and contrast controls, an exclusion list, clear disable behavior, and a history of compatibility updates. A curated SiteSkin theme is not a substitute for this breadth. It is an option for people who care more about a designed result on a smaller set of daily interfaces.
Custom CSS provides precision and creates maintenance work
A hand-written stylesheet can produce an excellent dark theme because the author can treat every component differently. It can preserve images, choose code colors, restyle controls, and adjust layout. The cost is selector maintenance. Generated class names and page redesigns can break rules without warning. Users also need a safe way to store and inject the stylesheet on matching URLs.
SiteSkin takes some of that precision and moves selector maintenance into an adapter. A manifest controls the approved visual system while the adapter targets known components. The creator cannot reach every element, but existing themes can benefit from one adapter repair. This model works for officially supported sites and does nothing on unsupported pages. The limitation is explicit rather than hidden behind a claim of universal support.
A good dark theme is more than background and text reversal
Dark interfaces need hierarchy between page, surface, elevated surface, input, code, and selected state. Pure black can create excessive contrast, while gray text can become too faint. Accent colors often need lower saturation, borders need different lightness, and images may need to remain exactly as supplied. Focus rings and disabled states must remain visible. A successful dark theme is a coordinated palette with component decisions, not a single inversion rule.
SiteSkin themes can use charcoal page backgrounds, lighter card surfaces, readable foregrounds, restrained accent colors, and separate code surfaces. They can also change width or density when the supported interface benefits. Because each manifest can be removed from the popup, users can compare a dark theme with a warm light theme rather than treating dark mode as a permanent all-or-nothing setting.
Frequently asked questions
Can SiteSkin enable dark mode on any website?+
No. SiteSkin applies curated themes only to supported sites. Use a universal dark-mode engine when broad coverage is the main requirement.
Why not use pure black for every dark background?+
Layered charcoal surfaces usually preserve hierarchy and reduce harsh contrast. Exact choices should still meet readable contrast requirements.