Base: Set transparent rubber band for all themes

The rubber band is the rectangle indicating the selection region on the
desktop, the file manager, and other icon views. If this region is
painted opaque with alpha=ff, the rectangle obscures the icons
underneath, harming the user experience. We set it to 3c like the other
themes.

Base/res/themes/Olive.ini

@@ -54,7 +54,7 @@ Window=#c1cbb5ff
 ThreedShadow2=#404040ff
 ThreedShadow1=#808080ff
 InactiveSelectionText=#ffffffff
-RubberBandFill=#619910ff
+RubberBandFill=#6199103c
 MovingWindowTitleStripes=#9fe13aff
 HighlightWindowBorder2=#9fe13aff
 SyntaxKeyword=#a42ea2ff

Base/res/themes/Pumpkin.ini

@@ -54,7 +54,7 @@ Window=#c7c6b0ff
 ThreedShadow2=#404040ff
 ThreedShadow1=#808080ff
 InactiveSelectionText=#ffffffff
-RubberBandFill=#978c0fff
+RubberBandFill=#978c0f3c
 MovingWindowTitleStripes=#e0ab39ff
 HighlightWindowBorder2=#e9d51aff
 SyntaxKeyword=#a42ea2ff

Base/res/themes/Scarlett.ini

@@ -54,7 +54,7 @@ Window=#c9b3b3ff
 ThreedShadow2=#404040ff
 ThreedShadow1=#808080ff
 InactiveSelectionText=#ffffffff
-RubberBandFill=#961605ff
+RubberBandFill=#9616053c
 MovingWindowTitleStripes=#e03d39ff
 HighlightWindowBorder2=#df3737ff
 SyntaxKeyword=#a42ea2ff