VSE: Strip drawing improvements

This patch include changes:
- Thicker and clearer selection indication
- Slimmer handles
- More transparent muted strips
- Trim frame number is drawn inside the strip
- Strip text is drawn in upper part of strip
- Color strips now have specific color, with chosen color drawn under strip text
- Transition strip will use color of input strips showing direction of transition
- Selecting effect strip will highlight input strips
- Selecting multicam strips will highlight target channel
- Missing media state is now indicated by a red line drawn on the top part of the strip
- A checkerboard pattern is now drawn on the outsides of the meta range
- Hold still regions are now always drawn if existent, with a darker shade of the strip’s background color

Author: Alessio Monti di Sopra <a.monti>

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D6883

1 files changed, 9 insertions, 3 deletions

diff --git a/source/blender/editors/interface/resources.c b/source/blender/editors/interface/resources.c
index 4d8bfe6b418..6e18352bad3 100644
--- a/source/blender/editors/interface/resources.c
+++ b/source/blender/editors/interface/resources.c
@@ -665,9 +665,6 @@ const uchar *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colorid)
         case TH_SEQ_EFFECT:
           cp = ts->effect;
           break;
-        case TH_SEQ_TRANSITION:
-          cp = ts->transition;
-          break;
         case TH_SEQ_META:
           cp = ts->meta;
           break;
@@ -677,6 +674,15 @@ const uchar *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colorid)
         case TH_SEQ_PREVIEW:
           cp = ts->preview_back;
           break;
+        case TH_SEQ_COLOR:
+          cp = ts->color_strip;
+          break;
+        case TH_SEQ_ACTIVE:
+          cp = ts->active_strip;
+          break;
+        case TH_SEQ_SELECTED:
+          cp = ts->selected_strip;
+          break;
 
         case TH_CONSOLE_OUTPUT:
           cp = ts->console_output;