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/ClockTool.cc b/src/ClockTool.cc
index f6a9797..257058f 100644
--- a/src/ClockTool.cc
+++ b/src/ClockTool.cc
@@ -334,7 +334,7 @@ void ClockTool::reRender() {
 }
 
 
-void ClockTool::renderTheme(unsigned char alpha) {
+void ClockTool::renderTheme(int alpha) {
     m_button.setAlpha(alpha);
     m_button.setJustify(m_theme->justify());