aseprite/aseprite
Oct 2024 – Sep 2025
11 Months active
Languages Used
C++LuaCCMakeObjective-C
Technical Skills
Bug FixingC++EXIF Data HandlingImage ProcessingSoftware DevelopmentBrush Engine
Gaspar Capello
PROFILE
Gaspar Capello
Over eleven months, Gaspar contributed to the aseprite/aseprite repository by building and refining core editor features and resolving complex bugs in graphics rendering, color management, and UI workflows. He enhanced brush symmetry, improved timeline thumbnail scaling, and introduced EXIF-based JPEG orientation support, all while maintaining robust undo/redo and session recovery mechanisms. Gaspar’s technical approach combined C++ and Lua scripting with targeted code optimizations, focusing on stability, workflow reliability, and visual fidelity. His work addressed nuanced issues in color space handling, tilemap editing, and export pipelines, demonstrating depth in graphics programming and a strong commitment to maintainable, user-focused software engineering.
Overall Statistics
Feature vs Bugs
16%Features
Repository Contributions
33Total
Bugs
21
Commits
33
Features
4
Lines of code
2,466
Activity Months11
Your Network
23 people
Work History
September 2025
2 Commits
Sep 1, 2025Concise monthly summary for 2025-09 focusing on key features delivered, major bugs fixed, overall impact, and technologies demonstrated. Highlights: two critical fixes in aseprite/aseprite that stabilize UI rendering and editing workflows, delivering tangible business value for artists and teams using the tool.
2 Commits
Sep 1, 2025Concise monthly summary for 2025-09 focusing on key features delivered, major bugs fixed, overall impact, and technologies demonstrated. Highlights: two critical fixes in aseprite/aseprite that stabilize UI rendering and editing workflows, delivering tangible business value for artists and teams using the tool.
September 2025
August 2025
3 Commits
Aug 1, 2025August 2025: Focused on improving rendering accuracy and editor reliability in aseprite/aseprite. Delivered targeted bug fixes that enhance visual fidelity, reduce user confusion, and strengthen color management compliance. Notable outcomes include corrected color space handling for the back layer, refined saturation blending, and accurate pivot calculations in tiled mode. These changes reduce rendering inconsistencies, improve workflow confidence for artists and developers, and lay groundwork for future color pipeline improvements.
August 2025
3 Commits
Aug 1, 2025August 2025: Focused on improving rendering accuracy and editor reliability in aseprite/aseprite. Delivered targeted bug fixes that enhance visual fidelity, reduce user confusion, and strengthen color management compliance. Notable outcomes include corrected color space handling for the back layer, refined saturation blending, and accurate pivot calculations in tiled mode. These changes reduce rendering inconsistencies, improve workflow confidence for artists and developers, and lay groundwork for future color pipeline improvements.
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025: Delivered three bug fixes and one feature enhancement for aseprite/aseprite focused on rendering integrity, session reliability, and macOS UX improvements. Improvements include accurate color rendering for Skia surfaces, robust session recovery detection, artifact-free GIF rendering with transparency, and upgraded macOS Sequoia thumbnail generation via QuickLookThumbnailing with updated bundling.
4 Commits • 1 Features
Jul 1, 2025July 2025: Delivered three bug fixes and one feature enhancement for aseprite/aseprite focused on rendering integrity, session reliability, and macOS UX improvements. Improvements include accurate color rendering for Skia surfaces, robust session recovery detection, artifact-free GIF rendering with transparency, and upgraded macOS Sequoia thumbnail generation via QuickLookThumbnailing with updated bundling.
July 2025
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for aseprite/aseprite. Focused maintenance month with a critical stability fix in the grid-snapping workflow. No new features delivered this cycle; primary work centered on bug resolution to improve precision and reduce user-frustration.
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for aseprite/aseprite. Focused maintenance month with a critical stability fix in the grid-snapping workflow. No new features delivered this cycle; primary work centered on bug resolution to improve precision and reduce user-frustration.
May 2025
1 Commits
May 1, 2025May 2025 monthly summary for aseprite/aseprite focusing on business value and technical achievements. The month centered on stabilizing the export pipeline and color-mode handling to protect user assets and improve performance. Key accomplishments include fixes to the tileset export process and streamlining the export workflow for Sprite Sheet exports, delivering tangible reliability improvements and code quality gains.
1 Commits
May 1, 2025May 2025 monthly summary for aseprite/aseprite focusing on business value and technical achievements. The month centered on stabilizing the export pipeline and color-mode handling to protect user assets and improve performance. Key accomplishments include fixes to the tileset export process and streamlining the export workflow for Sprite Sheet exports, delivering tangible reliability improvements and code quality gains.
May 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025Concise monthly summary for March 2025 focusing on delivering a user-facing feature and stabilizing the timeline UI in aseprite/aseprite.
March 2025
1 Commits • 1 Features
Mar 1, 2025Concise monthly summary for March 2025 focusing on delivering a user-facing feature and stabilizing the timeline UI in aseprite/aseprite.
February 2025
7 Commits
Feb 1, 2025February 2025 monthly update: Delivered critical rendering fixes and usability improvements across the core Aseprite editor, with a focus on correctness of visual output, reliable Undo/Redo behavior, and safer export workflows. The work spanned three main areas: Editor Visual Rendering, Image Rendering and Undo, and Symmetry/Export, implemented via targeted changes in the aseprite/aseprite repository. These changes improved timeline thumbnail scaling, onionskin redraw for empty cels, and alpha-aware slice rendering; corrected source-pixel rendering for BlendMode.SRC and added undo support for cel.image:clear; refined symmetry axis rendering and ensured the Export As dialog appends -export to prevent overwrites. Collectively, these updates reduce edge-case rendering bugs, enhance script interface usability, and protect users from accidental overwrites, delivering tangible business value in stability, UX, and automation readiness.
7 Commits
Feb 1, 2025February 2025 monthly update: Delivered critical rendering fixes and usability improvements across the core Aseprite editor, with a focus on correctness of visual output, reliable Undo/Redo behavior, and safer export workflows. The work spanned three main areas: Editor Visual Rendering, Image Rendering and Undo, and Symmetry/Export, implemented via targeted changes in the aseprite/aseprite repository. These changes improved timeline thumbnail scaling, onionskin redraw for empty cels, and alpha-aware slice rendering; corrected source-pixel rendering for BlendMode.SRC and added undo support for cel.image:clear; refined symmetry axis rendering and ensured the Export As dialog appends -export to prevent overwrites. Collectively, these updates reduce edge-case rendering bugs, enhance script interface usability, and protect users from accidental overwrites, delivering tangible business value in stability, UX, and automation readiness.
February 2025
January 2025
2 Commits
Jan 1, 2025January 2025 monthly work summary focused on stability and correctness in the aseprite repository. Delivered two critical fixes that remove visual artifacts and prevent crashes in low-zoom scenarios, and introduced targeted rendering optimizations to support simple scale-up/scale-down cases. These efforts reduce user-reported issues, improve reliability for tilemap editing and custom-ratio rendering, and lay groundwork for future tilemap tooling enhancements. All changes reference the aseprite/aseprite repo and are tied to concrete issues to close gaps in the last-trace policy and old render engine pathways.
January 2025
2 Commits
Jan 1, 2025January 2025 monthly work summary focused on stability and correctness in the aseprite repository. Delivered two critical fixes that remove visual artifacts and prevent crashes in low-zoom scenarios, and introduced targeted rendering optimizations to support simple scale-up/scale-down cases. These efforts reduce user-reported issues, improve reliability for tilemap editing and custom-ratio rendering, and lay groundwork for future tilemap tooling enhancements. All changes reference the aseprite/aseprite repo and are tied to concrete issues to close gaps in the last-trace policy and old render engine pathways.
December 2024
3 Commits
Dec 1, 2024December 2024: Focused on stability, reliability, and UI correctness in aseprite/aseprite. Delivered targeted bug fixes that reduce data loss risk, improve recent-files handling, and restore reliable keyboard shortcuts configuration. The work strengthens core editor interactions and user workflow consistency, laying groundwork for safer releases and easier future maintenance.
3 Commits
Dec 1, 2024December 2024: Focused on stability, reliability, and UI correctness in aseprite/aseprite. Delivered targeted bug fixes that reduce data loss risk, improve recent-files handling, and restore reliable keyboard shortcuts configuration. The work strengthens core editor interactions and user workflow consistency, laying groundwork for safer releases and easier future maintenance.
December 2024
November 2024
7 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for aseprite/aseprite focused on delivering a robust brush symmetry feature, stabilizing core editor workflows, and polishing the user interface. Key outcomes include a reinforced symmetry system with on-demand brush variant generation and multi-mode support, stability improvements across dynamics interactions, and improvements to cel management and z-order handling that reduce workflow friction and preserve intended artwork.
November 2024
7 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for aseprite/aseprite focused on delivering a robust brush symmetry feature, stabilizing core editor workflows, and polishing the user interface. Key outcomes include a reinforced symmetry system with on-demand brush variant generation and multi-mode support, stability improvements across dynamics interactions, and improvements to cel management and z-order handling that reduce workflow friction and preserve intended artwork.
October 2024
2 Commits • 1 Features
Oct 1, 2024Summary for 2024-10: Delivered two high-impact changes in aseprite/aseprite focused on stability and user experience. 1) Magic Wand Tool Tiled Mode Bug Fix – corrected point-in-canvas detection in tiled configurations (isPointInsideCanvas) to resolve issue #4659. Commit: f7a9f44cec65d07ed2f27616d32fe9e71e0fffb9. 2) JPEG Orientation Support via EXIF – added orientation adjustment during image loading so JPEGs display with correct orientation per EXIF, improving import UX. Commit: 339221c2889257f6cea73b70d95ccdcda343a2b8. Impact: increased reliability in tiled editing workflows and more intuitive photo imports, reducing user confusion and support friction. Technologies/skills demonstrated: advanced canvas boundary logic, image metadata handling, and robust UX focus.
2 Commits • 1 Features
Oct 1, 2024Summary for 2024-10: Delivered two high-impact changes in aseprite/aseprite focused on stability and user experience. 1) Magic Wand Tool Tiled Mode Bug Fix – corrected point-in-canvas detection in tiled configurations (isPointInsideCanvas) to resolve issue #4659. Commit: f7a9f44cec65d07ed2f27616d32fe9e71e0fffb9. 2) JPEG Orientation Support via EXIF – added orientation adjustment during image loading so JPEGs display with correct orientation per EXIF, improving import UX. Commit: 339221c2889257f6cea73b70d95ccdcda343a2b8. Impact: increased reliability in tiled editing workflows and more intuitive photo imports, reducing user confusion and support friction. Technologies/skills demonstrated: advanced canvas boundary logic, image metadata handling, and robust UX focus.
October 2024
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Quality Metrics
Correctness92.8%
Maintainability89.6%
Architecture87.2%
Performance88.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++CMakeLuaObjective-C
Technical Skills
Brush EngineBug FixBug FixingBuild SystemsC++C++ DevelopmentCMakeCode OptimizationColor ManagementColor TheoryCommand PatternCrash RecoveryEXIF Data HandlingEditor DevelopmentEditor Functionality
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