Added background_alpha param

src/overlay.cpp

@@ -1085,7 +1085,7 @@ static void position_layer(struct swapchain_data *data)
    if (instance_data->params.offset_x > 0 || instance_data->params.offset_y > 0)
       margin = 0.0f;
 
-   ImGui::SetNextWindowBgAlpha(0.5);
+   ImGui::SetNextWindowBgAlpha(instance_data->params.background_alpha);
    ImGui::SetNextWindowSize(ImVec2(instance_data->params.width, instance_data->params.height), ImGuiCond_Always);
    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
    ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(8,-3));
@@ -1125,7 +1125,7 @@ static void compute_swapchain_display(struct swapchain_data *data)
 	   ImGui::Begin("Main", &open, ImGuiWindowFlags_NoDecoration);
       
    if(instance_data->params.no_display){
-      ImGui::SetNextWindowBgAlpha(0.01);
+      ImGui::SetNextWindowBgAlpha(0.0);
       ImGui::Begin("Main", &open, ImGuiWindowFlags_NoDecoration);
    }
    
@@ -1263,7 +1263,7 @@ static void compute_swapchain_display(struct swapchain_data *data)
    }
    ImGui::End();
    if(loggingOn){
-      ImGui::SetNextWindowBgAlpha(0.01);
+      ImGui::SetNextWindowBgAlpha(0.0);
       ImGui::SetNextWindowSize(ImVec2(instance_data->params.font_size * 13, instance_data->params.font_size * 13), ImGuiCond_Always);
       ImGui::SetNextWindowPos(ImVec2(data->width - instance_data->params.font_size * 13,
                                     0),

src/overlay_params.cpp

@@ -76,6 +76,12 @@ parse_font_size(const char *str)
    return strtof(str, NULL);
 }
 
+static float
+parse_background_alpha(const char *str)
+{
+   return strtof(str, NULL);
+}
+
 static KeySym
 parse_toggle_hud(const char *str)
 {
@@ -230,6 +236,7 @@ parse_overlay_env(struct overlay_params *params,
    params->crosshair_size = 30;
    params->offset_x = 0;
    params->offset_y = 0;
+   params->background_alpha = 0.5;
 
 // Get config options
    parseConfigFile();

src/overlay_params.h

@@ -63,6 +63,7 @@ extern "C" {
    OVERLAY_PARAM_CUSTOM(offset_x)                    \
    OVERLAY_PARAM_CUSTOM(offset_y)                    \
    OVERLAY_PARAM_CUSTOM(crosshair_color)             \
+   OVERLAY_PARAM_CUSTOM(background_alpha)            \
    OVERLAY_PARAM_CUSTOM(help)
 
 enum overlay_param_position {
@@ -98,6 +99,7 @@ struct overlay_params {
    unsigned vsync;
    unsigned crosshair_color;
    float font_size;
+   float background_alpha;
    KeySym toggle_hud;
    KeySym toggle_logging;
 };