Windows desktop theme icons.

Tone every icon with the same hex. Icons from different sources end up sharing one color character and the desktop looks designed.

Cool, desaturated tones: slate, teal, ocean. They stay visible on a dark background without glaring.

Medium-saturation colors; very light tones blend into a light background.

Yes: find the accent's hex under Settings, Personalization, Colors, and use it or a complementary tone.

Yes; folders are ICO files like the rest. Tone them with the set and the yellow folders are gone.

Pack each PNG as ICO, then Properties, Change Icon for shortcuts and Properties, Customize, Change Icon for folders. Keep a set per theme and swap them.

Each pixel is read as hue, saturation and lightness; the tone's hue and saturation replace the pixel's and its lightness stays. Shading and highlights stay, so the icon keeps its shape and only its color changes.

Pick a preset (Sepia, Ocean, Violet, Teal, Sunset, Forest, Rose, Slate) or type any hex. The same hex gives the same result on every icon, which is how a set stays consistent.

The largest frame of the ICO is toned and the result is a PNG. Modern browsers take a PNG favicon as it is; for a favicon.ico or a Windows icon, pack it with the PNG to ICO tool.

No. The ICO is read and its frames decoded by JavaScript on your device; the page makes no request with your file. Load it, go offline and it still works.

No. The "Windows desktop theme icons" tool is free and opens without a sign-in, an account or an install.

Nothing. The "Windows desktop theme icons" tool holds your input in the page's memory, so closing or reloading the tab clears it, and it saves nothing in this browser.

Up to 100 MB per file, the limit the tool states under its drop area. A larger file is refused with a plain message instead of being decoded.

No, it takes one file at a time. If you drop or choose several, only the first is used; run the tool again for the next one.

The edit is written as a PNG because PNG stores every pixel exactly, with a full alpha channel, so the result can be edited again without a second round of loss.

No. The browser decodes the image and the tool writes a new file from its pixels, so camera EXIF, GPS position and text chunks in the original are not copied into the result. Keep the original file if you need them.

No. The result has the same width and height in pixels as the source.

Closest to the "Windows desktop theme icons" tool: ICO color tone changer, Windows icon recolor tool, Custom folder icon colors, App icon color themes. Each opens on its own page, free and in the browser.

The "Windows desktop theme icons" tool is one of 37 in its group. The group's page, /tools/ico, lists them all.

The tool is free. Its interface is built from shadcn.io's own components (Button, Input, Slider and the rest of the registry under /ui), which come in React, Vue, Svelte and Solid. Pro adds the blocks and templates for the product around it.