Fix background color use in 3D view

TH_BACK was being used when drawing the 3D view even though
there was no way to set the color in the preferences.

The color was zero'd when moving to the new 2.8x theme.

Having both gradient and background colors was confusing,
especially having to use 'TH_HIGH_GRAD' for the 3D view, 'TH_BACK' for
other views.

Move the background color back to 'TH_BACK', 'TH_BACK_GRAD' is used
when gradients are enabled.
RNA is unchanged so presets don't need updating.

1 files changed, 5 insertions, 9 deletions

diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 301dba3fac2..a749fba5026 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -164,13 +164,6 @@ typedef struct uiPanelColors {
 	char pad2[4];
 } uiPanelColors;
 
-typedef struct uiGradientColors {
-	char gradient[4];
-	char high_gradient[4];
-	int show_grad;
-	int pad2;
-} uiGradientColors;
-
 typedef struct ThemeUI {
 	/* Interface Elements (buttons, menus, icons) */
 	uiWidgetColors wcol_regular, wcol_tool, wcol_toolbar_item, wcol_text;
@@ -227,6 +220,11 @@ typedef struct ThemeUI {
 typedef struct ThemeSpace {
 	/* main window colors */
 	char back[4];
+	char back_grad[4];
+
+	char show_back_grad;
+	char _pad0[3];
+
 	/** Panel title. */
 	char title[4];
 	char text[4];
@@ -277,8 +275,6 @@ typedef struct ThemeSpace {
 	/* note, cannot use name 'panel' because of DNA mapping old files */
 	uiPanelColors panelcolors;
 
-	uiGradientColors gradients;
-
 	char shade1[4];
 	char shade2[4];