LMMS/lmms

Replace theme assets with SVGs

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#7,767 opened on Mar 13, 2025

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enhancementgood first issuegui

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 (Avg merge 146d 8h) (10 merged PRs in 30d)

Description

Tracking the ability to use SVGs for theme assets.

Some related efforts:

Some unresolved issues:

  • embed::getIconPixmap() quality is "stuck" at an SVGs "natural" resolution.
    • Fixed via #7769

High level tasks: (break these into finer tasks as needed)

  • Switch common assets from .png to .svg
  • Decide how to handle text (e.g. "ENVELOPE", "LFO")
  • Switch native effects plugins from .png to .svg
  • Decide how to handle instrument plugins

Initial team (gathered from Discord)

  • @StakeoutPunch
  • @rubiefawn
  • @Monospace-V
  • @SpomJ
  • @qnebra (this is not exhaustive, anyone feel free to chime in if you can help!)

Contributor guide

Research direction
Study the current asset loading system (embed::getIconPixmap) and understand SVG rendering in Qt. Identify a simple PNG asset to replace with an SVG, test scaling in different contexts, and create a pull request for one asset as a starting point.
Tech stack
cpp
Domain
desktop
Issue type
Refactor
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60