GoogleChromeLabs/squoosh

Transparency removal

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#736 opened on Mar 23, 2020

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 (8 comments) (25 reactions) (0 assignees)TypeScript (20,335 stars) (1,431 forks)batch import
UIcodechelp wanted

Description

(This is a merge of a couple of issues)

Is your feature request related to a problem? Please describe. Some images have transparency and the transparency is either undesired or the target image format cannot handle transparency. We can give the user more control how these cases are handled.

Describe the solution you'd like

Just like we have a section for preprocessing the size of an image, we could add a section to preprocess the transparency of an image, offering the following options (or more):

  • Choose a background color (#347, #699)
  • Texture Dilation (#735, 1, 2)

Contributor guide

Tech stack
typescript
Domain
frontend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
TypeScriptbasic web development
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55
Research direction
Examine the existing size preprocessing section in the codebase (likely in src/components or similar). Review linked issues #347, #699, #735 for additional context on background color and texture dilation. Look at how the size section integrates with the UI and the codec handling. Propose a UI mockup and implementation plan for a transparency preprocessing panel.