diff --git a/challenge-eight/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-eight/app/src/main/res/drawable-hdpi/ic_launcher.png
index 239b8c6..98b0beb 100644
Binary files a/challenge-eight/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-eight/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-eight/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-eight/app/src/main/res/drawable-mdpi/ic_launcher.png
index 90689e0..fdaed64 100644
Binary files a/challenge-eight/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-eight/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-eight/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-eight/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..2a44793
Binary files a/challenge-eight/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-eight/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-eight/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-eight/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index db9be35..50ee42c 100644
Binary files a/challenge-eight/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-eight/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-eight/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-eight/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..22a32c1
Binary files a/challenge-eight/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-eight/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-eight/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-eight/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..7ff6149
Binary files a/challenge-eight/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-eight/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-eight/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-eight/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index 0ab76d8..525ca66 100644
Binary files a/challenge-eight/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-eight/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-eight/app/src/main/res/drawable/tiny_grid.png b/challenge-eight/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..bd9defb
Binary files a/challenge-eight/app/src/main/res/drawable/tiny_grid.png and b/challenge-eight/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-five/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-five/app/src/main/res/drawable-hdpi/ic_launcher.png
index a236d8f..c189607 100644
Binary files a/challenge-five/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-five/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-five/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-five/app/src/main/res/drawable-mdpi/ic_launcher.png
index abd07c4..bfbbf70 100644
Binary files a/challenge-five/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-five/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-five/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-five/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..82aaac7
Binary files a/challenge-five/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-five/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-five/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-five/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index 90c3d37..c29907c 100644
Binary files a/challenge-five/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-five/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-five/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-five/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..77faa49
Binary files a/challenge-five/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-five/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-five/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-five/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..3f5af72
Binary files a/challenge-five/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-five/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-five/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-five/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index aeb5373..66e822d 100644
Binary files a/challenge-five/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-five/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-five/app/src/main/res/drawable/tiny_grid.png b/challenge-five/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..fe7f834
Binary files a/challenge-five/app/src/main/res/drawable/tiny_grid.png and b/challenge-five/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-four/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-four/app/src/main/res/drawable-hdpi/ic_launcher.png
index 4c3a37c..12bd9eb 100644
Binary files a/challenge-four/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-four/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-four/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-four/app/src/main/res/drawable-mdpi/ic_launcher.png
index c1a5a0f..01e8ef6 100644
Binary files a/challenge-four/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-four/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-four/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-four/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..8d10836
Binary files a/challenge-four/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-four/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-four/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-four/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index e85aedd..ea62926 100644
Binary files a/challenge-four/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-four/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-four/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-four/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..ba3f978
Binary files a/challenge-four/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-four/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-four/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-four/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..62ad178
Binary files a/challenge-four/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-four/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-four/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-four/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index 8e6afcc..eaea19f 100644
Binary files a/challenge-four/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-four/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-four/app/src/main/res/drawable/tiny_grid.png b/challenge-four/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..51b0fd5
Binary files a/challenge-four/app/src/main/res/drawable/tiny_grid.png and b/challenge-four/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-nine/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-nine/app/src/main/res/drawable-hdpi/ic_launcher.png
index 8f62031..7eb91c7 100644
Binary files a/challenge-nine/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-nine/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-nine/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-nine/app/src/main/res/drawable-mdpi/ic_launcher.png
index 148e0d5..fa792d9 100644
Binary files a/challenge-nine/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-nine/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-nine/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-nine/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..0386523
Binary files a/challenge-nine/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-nine/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-nine/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-nine/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index ecb2c8e..4a7c359 100644
Binary files a/challenge-nine/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-nine/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-nine/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-nine/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..64480ee
Binary files a/challenge-nine/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-nine/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-nine/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-nine/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..3551cba
Binary files a/challenge-nine/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-nine/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-nine/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-nine/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index a80063c..2b6d27b 100644
Binary files a/challenge-nine/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-nine/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-nine/app/src/main/res/drawable/tiny_grid.png b/challenge-nine/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..51b0fd5
Binary files a/challenge-nine/app/src/main/res/drawable/tiny_grid.png and b/challenge-nine/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-one/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-one/app/src/main/res/drawable-hdpi/ic_launcher.png
index 26790d2..e64ac83 100644
Binary files a/challenge-one/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-one/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-one/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-one/app/src/main/res/drawable-mdpi/ic_launcher.png
index d48dce2..a2d9342 100644
Binary files a/challenge-one/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-one/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-one/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-one/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..640abe0
Binary files a/challenge-one/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-one/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-one/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-one/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index 856a70b..419cc47 100644
Binary files a/challenge-one/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-one/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-one/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-one/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..0f2b28e
Binary files a/challenge-one/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-one/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-one/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-one/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..b843394
Binary files a/challenge-one/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-one/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-one/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-one/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index c883613..a629ed0 100644
Binary files a/challenge-one/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-one/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-one/app/src/main/res/drawable/tiny_grid.png b/challenge-one/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..bb1d33d
Binary files a/challenge-one/app/src/main/res/drawable/tiny_grid.png and b/challenge-one/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-seven/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-seven/app/src/main/res/drawable-hdpi/ic_launcher.png
index 52bd40e..9652167 100644
Binary files a/challenge-seven/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-seven/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-seven/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-seven/app/src/main/res/drawable-mdpi/ic_launcher.png
index 57d6c90..2e7a675 100644
Binary files a/challenge-seven/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-seven/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-seven/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-seven/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..761ab4b
Binary files a/challenge-seven/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-seven/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-seven/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-seven/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index 3815f2e..67c9477 100644
Binary files a/challenge-seven/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-seven/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-seven/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-seven/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..a63b56d
Binary files a/challenge-seven/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-seven/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-seven/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-seven/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..e90b0ca
Binary files a/challenge-seven/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-seven/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-seven/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-seven/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index 282457e..2759428 100644
Binary files a/challenge-seven/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-seven/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-seven/app/src/main/res/drawable/tiny_grid.png b/challenge-seven/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..566edbc
Binary files a/challenge-seven/app/src/main/res/drawable/tiny_grid.png and b/challenge-seven/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-six/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-six/app/src/main/res/drawable-hdpi/ic_launcher.png
index f6e450f..ba7f66b 100644
Binary files a/challenge-six/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-six/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-six/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-six/app/src/main/res/drawable-mdpi/ic_launcher.png
index 2212bc5..feacd82 100644
Binary files a/challenge-six/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-six/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-six/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-six/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..2a44793
Binary files a/challenge-six/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-six/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-six/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-six/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index ae1c6ef..b3e2259 100644
Binary files a/challenge-six/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-six/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-six/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-six/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..2b2308c
Binary files a/challenge-six/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-six/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-six/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-six/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..c1a9796
Binary files a/challenge-six/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-six/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-six/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-six/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index 107e3f2..acd2620 100644
Binary files a/challenge-six/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-six/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-six/app/src/main/res/drawable/tiny_grid.png b/challenge-six/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..46afea9
Binary files a/challenge-six/app/src/main/res/drawable/tiny_grid.png and b/challenge-six/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-ten/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-ten/app/src/main/res/drawable-hdpi/ic_launcher.png
index 3196ca9..b33e5c2 100644
Binary files a/challenge-ten/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-ten/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-ten/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-ten/app/src/main/res/drawable-mdpi/ic_launcher.png
index ca67412..7484f2d 100644
Binary files a/challenge-ten/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-ten/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-ten/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-ten/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..e9aeeae
Binary files a/challenge-ten/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-ten/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-ten/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-ten/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index 3068706..79b7d23 100644
Binary files a/challenge-ten/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-ten/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-ten/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-ten/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..b8f90c0
Binary files a/challenge-ten/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-ten/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-ten/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-ten/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..66a563d
Binary files a/challenge-ten/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-ten/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-ten/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-ten/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index b920c4f..e4141d3 100644
Binary files a/challenge-ten/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-ten/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-ten/app/src/main/res/drawable/tiny_grid.png b/challenge-ten/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..650879f
Binary files a/challenge-ten/app/src/main/res/drawable/tiny_grid.png and b/challenge-ten/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-three/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-three/app/src/main/res/drawable-hdpi/ic_launcher.png
index 45fabd9..5523321 100644
Binary files a/challenge-three/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-three/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-three/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-three/app/src/main/res/drawable-mdpi/ic_launcher.png
index 178c6b5..291257e 100644
Binary files a/challenge-three/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-three/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-three/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-three/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..ce4002c
Binary files a/challenge-three/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-three/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-three/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-three/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index 7c4b57a..255c1df 100644
Binary files a/challenge-three/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-three/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-three/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-three/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..b26a8aa
Binary files a/challenge-three/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-three/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-three/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-three/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..1c8d1c9
Binary files a/challenge-three/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-three/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-three/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-three/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index 500804d..76af78a 100644
Binary files a/challenge-three/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-three/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-three/app/src/main/res/drawable/tiny_grid.png b/challenge-three/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..650879f
Binary files a/challenge-three/app/src/main/res/drawable/tiny_grid.png and b/challenge-three/app/src/main/res/drawable/tiny_grid.png differ
diff --git a/challenge-two/app/src/main/res/drawable-hdpi/ic_launcher.png b/challenge-two/app/src/main/res/drawable-hdpi/ic_launcher.png
index ccb1834..b3162ef 100644
Binary files a/challenge-two/app/src/main/res/drawable-hdpi/ic_launcher.png and b/challenge-two/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/challenge-two/app/src/main/res/drawable-mdpi/ic_launcher.png b/challenge-two/app/src/main/res/drawable-mdpi/ic_launcher.png
index ea6a46e..7694dd1 100644
Binary files a/challenge-two/app/src/main/res/drawable-mdpi/ic_launcher.png and b/challenge-two/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/challenge-two/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png b/challenge-two/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 41982eb..88db074
Binary files a/challenge-two/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-two/app/src/main/res/drawable-xhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-two/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/challenge-two/app/src/main/res/drawable-xxhdpi/ic_launcher.png
index 1a670e8..9d3c543 100644
Binary files a/challenge-two/app/src/main/res/drawable-xxhdpi/ic_launcher.png and b/challenge-two/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/challenge-two/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png b/challenge-two/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png
old mode 100755
new mode 100644
index 16ad57c..86bdc54
Binary files a/challenge-two/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png and b/challenge-two/app/src/main/res/drawable-xxhdpi/menu_dropdown_panel_nebula.9.png differ
diff --git a/challenge-two/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png b/challenge-two/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png
old mode 100755
new mode 100644
index ee1774c..995d217
Binary files a/challenge-two/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png and b/challenge-two/app/src/main/res/drawable-xxhdpi/progress_primary_nebula.9.png differ
diff --git a/challenge-two/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/challenge-two/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
index 41abe28..6b73189 100644
Binary files a/challenge-two/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and b/challenge-two/app/src/main/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/challenge-two/app/src/main/res/drawable/tiny_grid.png b/challenge-two/app/src/main/res/drawable/tiny_grid.png
old mode 100755
new mode 100644
index 01c70d4..580691c
Binary files a/challenge-two/app/src/main/res/drawable/tiny_grid.png and b/challenge-two/app/src/main/res/drawable/tiny_grid.png differ