HueFill: Rainbow & Gradient Text for Google Docs™ — Terms of Service
Last updated: 10 November 2026
These terms are between you and Spyridon Pikoulas, who makes HueFill, an add-on for Google Docs™. Installing or using HueFill means you accept them.
The service
HueFill colours the text you select in the document you open it in, as you ask. A colouring sets the text colour of each letter or word in the selection, or with the highlight effect its highlight colour, and with growing letters also its font size. Spaces and line breaks keep their look; the selection’s other formatting is left as it was. Remove colours sets the selection’s text and highlight colours back to the document’s defaults, including colours that HueFill did not set. Edit > Undo and File > Version history in Docs show and restore the document as it was before. A selection can hold up to 20,000 letters at a time.
Free use and the one-time purchase
The rainbow on the letters and Remove colours are free, without limit. Each Google account gets 10 colourings in total free with any other look or effect: your own colours, a gradient, colours in turn, the highlight or growing letters. A colouring that is refused or fails before changing anything uses none.
After that, HueFill Pro is a $9 one-time unlock per Google account for all looks and effects without limit, paid through Stripe at the price shown before you pay, plus any tax due. There is no subscription or automatic renewal. Google’s service limits apply to free and paid use. A CaptionFill purchase unlocks HueFill Pro for the same Google account, or is refunded on request.
Any payment can be refunded within 14 days: write to the address below with the Google account email used for the purchase. A full refund or dispute removes the unlock when a later billing check finds it; checks are normally cached for six hours, so this is not instant.
Your part
Use HueFill lawfully and within Google’s terms. Check what a colouring changed before you rely on the result, and that coloured text stays readable for the people you share it with. Don’t try to get around the free limit or the purchase check.
Warranty and liability
HueFill is provided as it is, without warranty of any kind. To the extent the law allows, we are not liable for indirect or consequential loss, and our total liability is limited to what you paid for HueFill in the 12 months before the claim. Nothing here limits rights you have as a consumer that cannot be limited.
Changes
We may change these terms or HueFill’s price. A new price applies to future purchases. The date at the top shows the latest version. Danish law governs these terms.