diff --git a/resources/images/impl/gui/lookandfeel/buttonBGLeft.png b/resources/images/impl/gui/lookandfeel/buttonBGLeft.png deleted file mode 100644 index 8f31eb657..000000000 Binary files a/resources/images/impl/gui/lookandfeel/buttonBGLeft.png and /dev/null differ diff --git a/resources/images/impl/gui/lookandfeel/buttonBGRight.png b/resources/images/impl/gui/lookandfeel/buttonBGRight.png deleted file mode 100644 index a341ef1c6..000000000 Binary files a/resources/images/impl/gui/lookandfeel/buttonBGRight.png and /dev/null differ diff --git a/resources/images/impl/gui/lookandfeel/buttonBgMiddle.png b/resources/images/impl/gui/lookandfeel/buttonBgMiddle.png new file mode 100644 index 000000000..e69de29bb