4.15.0

💅 Polish

• Redrew the 82 built-in toolbar, dialog and image-editor icons as a consistent, compact SVG family with balanced strokes and rounded corners.
• Improved small-size readability of lists, alignment and line-height controls; distinguished row and column insertion, clarified cell merging and splitting, and restored spacing in font-size and source-code icons.
• Preserved theme colors and the text-color indicator, enlarged dropdown chevrons and refined the assistant icon. Updated visual regression snapshots for the new icon family.

🏠 Internal

• Allow an explicit release version through make newversion releaseVersion=4.15.0; the default remains a patch increment.