Frost

At a glance

Frost gives Linux folders, file types and selected applications a consistent frosted-glass icon style. It is worth previewing if mixed icon styles bother you and you like bright colors with white symbols. The glass effect is baked into icon images; this is an appearance choice for icons rather than a change to window transparency.

Good fit

A developer who wants file icons to communicate more than a generic document symbol. JSON, Markdown, certificates and other types have distinct marks, with short type labels at larger sizes. The project targets GNOME, KDE Plasma and COSMIC. Its browser color builder makes the visual decision approachable: choosing the warm preset changed the preview and exposed a matching configuration file during inspection.

Consider something else when

You want every application logo replaced or exact file-type labels at very small sizes. Frost deliberately inherits icons it has not redrawn, so the final desktop still depends on fallback themes such as Papirus and Adwaita. Below 48 pixels, the file-type labels disappear and some types share their category’s image. Check the scale you actually use before committing to the look.

Start here

Start with the linked browser color builder, compare the default and warm presets, and open “See the file” to inspect the configuration. For a Linux installation, review a release archive, place its Frost directory under ~/.local/share/icons/, then select Frost in the desktop’s icon settings. GNOME uses Tweaks → Appearance → Icons. The documented installer also leaves theme activation to you; previewing or downloading the theme does not select it.

Cost and requirements

The theme and tools are MIT licensed. Standard installation uses pre-rendered assets; custom colors rebuild them locally and require Bun and build dependencies. The custom installer asks before installing Bun if it is missing, and that runtime can remain after removing Frost. The default target is the current user’s icon directory; the system-wide option uses elevated privileges.

Limits to know

The optional MIME add-on changes how the desktop identifies selected developer file types, so it is a separate decision from changing their appearance. Custom installation replaces an existing Frost directory, and upgrades offer to reapply saved colors. Native installation, removal and rendering on Linux were not tested here. The browser preview supports judging the palette, not a guarantee that every desktop application will resolve the intended icon.

Related work

• Bun (complement)

Still unclear

• Compatibility with older GNOME, KDE and COSMIC releases beyond the project’s stated targets.