bugfix: consistent use of 'int' for alpha values (#3187373)

WindowMenuAccessor returned strange alpha values if compiled
with 'g++ -Os'; unholy black magic happens if template<int> faces
functions returning only 'usigned char'.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/WorkspaceNameTool.hh b/src/WorkspaceNameTool.hh
index bd034b7..de95663 100644
--- a/src/WorkspaceNameTool.hh
+++ b/src/WorkspaceNameTool.hh
@@ -64,7 +64,7 @@ private:
     /// Called when workspace changed on \c screen
     void updateForScreen(BScreen &screen);
 
-    void renderTheme(unsigned char alpha);
+    void renderTheme(int alpha);
     void reRender();
     void updateSizing();
     FbTk::TextButton m_button;