UI: Match tabs active color with properties background color

Also match topbar background color with active tab so they blend better.
And other minor adjustments for consistency.

release/datafiles/userdef/userdef_default_theme.c

@@ -111,10 +111,10 @@ const bTheme U_theme_default = {
 		},
 		.wcol_tab = {
 			.outline = RGBA(0x2d2d2dff),
-			.inner = RGBA(0x323232ff),
-			.inner_sel = RGBA(0x4b4b4bff),
+			.inner = RGBA(0x2b2b2bff),
+			.inner_sel = RGBA(0x424242ff),
 			.item = RGBA(0x2d2d2dff),
-			.text = RGBA(0xa4a4a4ff),
+			.text = RGBA(0xa6a6a6ff),
 			.text_sel = RGBA(0xffffffff),
 			.roundness = 0.2f,
 		},
@@ -132,7 +132,7 @@ const bTheme U_theme_default = {
 		.wcol_pulldown = {
 			.outline = RGBA(0x4d4d4dff),
 			.inner = RGBA(0x2e2e2e99),
-			.inner_sel = RGBA(0x5680c2ff),
+			.inner_sel = RGBA(0x597cb3ff),
 			.item = RGBA(0x727272ff),
 			.text = RGBA(0xeeeeeeff),
 			.text_sel = RGBA(0xffffffff),
@@ -209,10 +209,10 @@ const bTheme U_theme_default = {
 			.roundness = 0.2f,
 		},
 		.wcol_pie_menu = {
-			.outline = RGBA(0x212121ff),
+			.outline = RGBA(0x333333ff),
 			.inner = RGBA(0x212121ef),
-			.inner_sel = RGBA(0x585858ff),
-			.item = RGBA(0x597cb3ff),
+			.inner_sel = RGBA(0x597cb3ff),
+			.item = RGBA(0x585858ff),
 			.text = RGBA(0xeeeeeeff),
 			.text_sel = RGBA(0xffffffff),
 			.shadetop = 10,
@@ -574,7 +574,7 @@ const bTheme U_theme_default = {
 		.handle_vertex_size = 4,
 		.anim_active = RGBA(0xcc701a66),
 		.anim_non_active = RGBA(0x9987614d),
-		.anim_preview_range = RGBA(0xcc701a66),
+		.anim_preview_range = RGBA(0xa14d0066),
 		.nla_tweaking = RGBA(0x4df31a4d),
 		.nla_tweakdupli = RGBA(0xd90000ff),
 		.nla_transition = RGBA(0x1c2630ff),
@@ -904,7 +904,7 @@ const bTheme U_theme_default = {
 		.gp_vertex_size = 1,
 	},
 	.ttopbar = {
-		.back = RGBA(0x4b4b4b00),
+		.back = RGBA(0x42424200),
 		.title = RGBA(0xffffffff),
 		.text = RGBA(0xffffffff),
 		.text_hi = RGBA(0xffffffff),