Improve wallpaper support

[mntone]

Changes

• Allow for capitalization of the extensions. (e.g. .JPG, .pNg)
• Support JPEG XR, WebP and HEIF image formats.
• Fixed an issue where Fill (fil) and Span (sp) didn't work in the per-wallpaper position method.
• Added feature to set the default position method (Can we set the backgrounds' mode? #38).
• Fixed an issue to throw an exception when the wallpaper isn't set.

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変更点

• 拡張子の指定に大文字を許可。 (例 .JPG, .pNg)
• JPEG XR, WebP と HEIF画像フォーマットに対応。
• 壁紙ごとの配置方法で Fill (fil) と Span (sp) が正しく機能していなかった問題の修正。
• 既定の配置方法を設定できる項目の追加 (Can we set the backgrounds' mode? #38)。
• 壁紙が設定されていないとき例外が発生する問題の修正。

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In order to use each image format, the specific extensions are required.

• WebP: https://www.microsoft.com/store/productId/9PG2DK419DRG
• AVIF in HEIF (HEIF image extensions): https://www.microsoft.com/store/productId/9PMMSR1CGPWG
• HEIC in HEIF (HEIF image extensions are needed):
  • Software ver: https://www.microsoft.com/store/productId/9NMZLZ57R3T7
  • Manufacturer (Hardware) ver: https://www.microsoft.com/store/productId/9N4WGH0Z6VHQ
• AVIF in HEIF (HEIF image extensions are needed): https://www.microsoft.com/store/productId/9MVZQVXJBQ9V

[Tps-F]

Sorry. Can I get the executable file that has been built?

すいません、ビルド後のファイルを私は得られますか？

[mntone]

Sorry. Can I get the executable file that has been built?

すいません、ビルド後のファイルを私は得られますか？

Hi.

I generated an executable that merges several functions (#51, #52 & #54). I have not tested this executable at all. However, it will behave as expected.

SylphyHorn_3.1.1.zip

[Tps-F]

Thank you!

[mntone]

They (#51, #52, and #54) are correctly fixed in this executable. You should install each image extension if you want to use an additional format.

[Tps-F]

It worked on another PC!
Thank you!